Music... 00:00:01.36\00:00:15.68 Happy to be here for today's presentation, 00:00:15.71\00:00:18.21 it's one of the more important aspects of our lives 00:00:18.25\00:00:22.48 that we're going to talk about: Sleep... 00:00:22.52\00:00:25.25 and yet, as important as it is, 00:00:25.29\00:00:27.72 it's one of the least understood 00:00:27.76\00:00:30.33 but in the last decade or so, 00:00:30.36\00:00:32.86 there's been a lot of research on sleep 00:00:32.89\00:00:35.76 and we now understand much more than we ever understood before. 00:00:35.80\00:00:40.40 Sleep... we often think of sleep as rest 00:00:40.44\00:00:44.57 because we wake up in the morning rested and refreshed 00:00:44.61\00:00:49.18 but the brain 00:00:49.21\00:00:51.71 isn't actually resting during the time that we're sleeping, 00:00:51.75\00:00:56.52 it's actually very active... 00:00:56.55\00:00:58.69 it just has different tasks that it's doing 00:00:58.72\00:01:02.06 and these tasks do not want us to be conscious 00:01:02.09\00:01:05.39 but unconscious 00:01:05.43\00:01:06.76 and so, we are asleep during that time 00:01:06.80\00:01:11.63 but the brain isn't actually resting, 00:01:11.67\00:01:14.47 it's working really hard during that time 00:01:14.50\00:01:17.24 and if it were not for the work that the brain was doing then, 00:01:17.27\00:01:20.28 you wouldn't be able to continue with your conscious life 00:01:20.31\00:01:23.88 in this world for the rest of the coming day. 00:01:23.91\00:01:26.18 If you live to be 90 years old, 00:01:26.21\00:01:29.48 you will have spent 30 years of your life unconscious 00:01:29.52\00:01:33.36 in the state of sleep. 00:01:33.39\00:01:34.72 It's absolutely essential... 00:01:34.76\00:01:37.69 you can't avoid it... we need it. 00:01:37.73\00:01:40.53 Did you get enough sleep last week? 00:01:40.56\00:01:43.30 Can you recall the last time you woke up 00:01:43.37\00:01:46.13 without an alarm clock... feeling refreshed... 00:01:46.17\00:01:48.70 not needing any Caffeine? 00:01:48.74\00:01:50.21 Two thirds of us 00:01:50.27\00:01:52.37 do not get the recommended eight hours of sleep. 00:01:52.44\00:01:55.64 Somewhere between seven and nine hours 00:01:55.71\00:01:58.91 is the ideal number for most people 00:01:58.95\00:02:02.08 and it's absolutely essential to get this sleep... 00:02:02.12\00:02:06.02 the effects of sleep deprivation are very harmful on the body. 00:02:06.05\00:02:11.86 One of the parts of us that is affected is the immune system. 00:02:11.89\00:02:17.70 Sleep deprivation demolishes our immune system... 00:02:17.73\00:02:23.84 sets us up for increased infections... 00:02:23.87\00:02:26.47 the cells of your immune system 00:02:26.51\00:02:31.51 need to be refurbished 00:02:31.55\00:02:34.05 and they are refurbished during the time of sleep. 00:02:34.12\00:02:37.22 They need to build up all of the ammunition and supplies 00:02:37.25\00:02:40.79 to carry on the battle against bacteria and viruses. 00:02:40.82\00:02:44.06 It's during this time that they make up the various 00:02:44.09\00:02:47.30 communicator molecules 00:02:47.33\00:02:48.66 and sending the messages back and forth 00:02:48.70\00:02:50.63 and so, it's absolutely essential 00:02:50.67\00:02:53.34 if we're going to be successful in fighting off the bacteria 00:02:53.37\00:02:57.97 and other microbes that can infect us 00:02:58.04\00:03:01.74 and cause serious harm... 00:03:01.78\00:03:03.11 we need good sound sleep... eight hours of it every night 00:03:03.14\00:03:07.25 but it's not only fighting infections... 00:03:07.28\00:03:10.52 your immune-system's job is not only 00:03:10.59\00:03:13.76 recognize foreign invaders from outside your body, 00:03:13.79\00:03:17.23 but also to recognize invaders from inside... rebels... 00:03:17.26\00:03:23.06 the cancer cells... cells that have altered change 00:03:23.10\00:03:26.27 that are no longer behaving as they should, 00:03:26.30\00:03:29.07 the immune system needs to recognize those and destroy them 00:03:29.10\00:03:32.81 and if you get a good sleep, 00:03:32.84\00:03:34.74 usually they're able to carry on their job. 00:03:34.78\00:03:37.21 We're obviously making cancer cells 00:03:37.25\00:03:40.08 on a regular basis in our body... 00:03:40.12\00:03:42.88 the immune system recognizes them and destroys them 00:03:42.92\00:03:45.82 and we're okay. 00:03:45.85\00:03:49.26 It's only when the immune system fails 00:03:49.29\00:03:51.73 and the cancer can take off and spread and grow 00:03:51.76\00:03:55.73 that we end up getting diagnosed with cancer down the road. 00:03:55.76\00:04:00.04 Pause... 00:04:00.07\00:04:01.77 Alzheimer's disease... 00:04:01.80\00:04:03.37 sleep deprivation is one of the key lifestyle risk factors 00:04:03.41\00:04:11.31 determining whether or not you're going to develop 00:04:11.35\00:04:14.12 Alzheimer's disease. 00:04:14.15\00:04:15.48 Devastating condition... the brain is broken down 00:04:15.52\00:04:19.59 and shrinks away and we lose cognitive function 00:04:19.62\00:04:23.89 we lose memory and... 00:04:23.93\00:04:25.69 not just memory but all of the other parts of the brain 00:04:25.73\00:04:29.20 seem to go with it and eventually we will die and... 00:04:29.23\00:04:32.63 because we just can't carry on the basic life functions 00:04:32.67\00:04:36.00 of the body without the brain directing 00:04:36.04\00:04:38.24 and coordinating those functions. 00:04:38.27\00:04:39.71 Pause... 00:04:39.74\00:04:42.61 We know that sleep deprivation is one of those risk factors... 00:04:42.64\00:04:45.71 if you're not getting enough sleep, 00:04:45.75\00:04:47.22 you are definitely at higher risk 00:04:47.25\00:04:49.58 for getting Alzheimer's disease. 00:04:49.62\00:04:51.92 It's a major risk factor in coronary artery disease... 00:04:51.95\00:04:56.93 heart attacks... strokes... 00:04:56.99\00:04:59.83 the number one cause of death in this country. 00:04:59.86\00:05:03.47 If you don't want those big tombstones on your EKG here, 00:05:03.50\00:05:09.27 these big raised tombstones here... 00:05:09.30\00:05:14.08 those... 00:05:14.11\00:05:15.68 what we call STEMI an S T Elevation M I 00:05:15.71\00:05:20.68 from occlusive infarct in one of the arteries of your heart. 00:05:20.72\00:05:27.02 It's a distinctive EKG finding 00:05:27.06\00:05:29.26 and you don't want those on your EKG 00:05:29.29\00:05:31.26 because if you do, you may also find the tombstone 00:05:31.29\00:05:34.63 over your grave soon... 00:05:34.66\00:05:37.17 they go along together there. 00:05:37.20\00:05:39.50 Sleep deprivation actually increases insulin resistance. 00:05:39.53\00:05:48.94 In other words, moves you into a pre-Diabetic state 00:05:49.01\00:05:52.21 and can push you on down that road towards Diabetes. 00:05:52.25\00:05:55.42 It's interesting... 00:05:55.45\00:05:56.79 you can take a group of healthy college students 00:05:56.82\00:05:59.85 cutting back on their sleep deprivation 00:05:59.89\00:06:02.96 so, they're getting less than six hours of sleep a night 00:06:02.99\00:06:07.40 and by the end of one week, 00:06:07.43\00:06:09.80 you can check their blood-sugar levels 00:06:09.83\00:06:12.63 and they're already going into this... 00:06:12.70\00:06:15.44 what we would be measured as: pre-Diabetic 00:06:15.47\00:06:18.17 so, the metabolism in your body 00:06:18.21\00:06:22.44 needs sleep to function properly 00:06:22.48\00:06:26.65 and not just the metabolism affecting insulin resistance, 00:06:26.68\00:06:31.25 there's couple of hormones that control our appetite 00:06:31.29\00:06:40.46 and how much food we eat. 00:06:40.50\00:06:42.60 Ghrelin and Leptin... 00:06:42.63\00:06:44.67 Ghrelin is an enzyme... not an enzyme... a hormone 00:06:44.70\00:06:49.80 that is released from your stomach 00:06:49.84\00:06:53.54 and when your stomach is empty 00:06:53.58\00:06:56.75 and ready to take another meal, 00:06:56.81\00:06:59.55 you start putting out Ghrelin. 00:06:59.61\00:07:02.28 Ghrelin says to the rest of the body, 00:07:02.32\00:07:04.69 "Hey, it's time to eat... we're empty... 00:07:04.75\00:07:07.09 we can take another meal here. " 00:07:07.12\00:07:08.46 Leptin has sort of the opposite effect, 00:07:08.52\00:07:12.43 Leptin is released by your fat cells 00:07:12.46\00:07:16.33 and if you've got a lot of fat cells built up, 00:07:16.36\00:07:20.24 you're going to put out more Leptin 00:07:20.27\00:07:22.70 and Leptin goes and tells the Appetite Center in the brain, 00:07:22.74\00:07:26.51 it says, "Hey, we've got a lot of food stored here, 00:07:26.54\00:07:29.31 you really don't need to eat right now... " 00:07:29.34\00:07:32.65 but with sleep deprivation, Ghrelin goes up... 00:07:32.68\00:07:35.92 "Hey, it's time to eat... stomach's empty... " 00:07:35.95\00:07:39.15 and Leptin goes down... 00:07:39.19\00:07:41.02 it quits saying, "Hey, we have got plenty of food, 00:07:41.09\00:07:44.69 we... " 00:07:44.73\00:07:46.06 and so the brain says, "Hey, well, we need food 00:07:46.09\00:07:48.16 and the stomach's empty, I think we're hungry... " 00:07:48.20\00:07:50.57 and it puts out those hunger signs 00:07:50.60\00:07:52.83 and we move on down that road to obesity 00:07:52.87\00:07:55.90 affecting so many people here in this country 00:07:55.97\00:07:59.87 and with a lot of serious health consequences 00:07:59.91\00:08:03.78 associated with obesity there. 00:08:03.81\00:08:06.82 Sleep deprivation contributes to all major psychiatric conditions 00:08:06.85\00:08:14.12 including anxiety, depression and suicide. 00:08:14.16\00:08:18.13 If you're not getting enough sleep, 00:08:18.16\00:08:20.70 you're pushing your brain towards more anxiety... 00:08:20.73\00:08:25.50 more depression 00:08:25.53\00:08:27.44 and it meets a lot of the other psychiatric conditions as well 00:08:27.47\00:08:34.58 are pushed over the edge with sleep deprivation 00:08:34.61\00:08:38.01 and, of course, sleep-deprived driving... 00:08:38.05\00:08:42.95 driving home after a night shift... 00:08:42.98\00:08:47.32 sleep deprived can be the same as driving on alcohol. 00:08:47.36\00:08:52.43 Your reflexes... your response time... 00:08:52.46\00:08:55.70 everything is off... 00:08:55.73\00:08:57.07 you can get these... it's like the brain wants to sleep so bad, 00:08:57.10\00:09:00.64 it starts getting this little micro-sleeps... 00:09:00.67\00:09:02.80 in other words, you're trying to stay awake 00:09:02.84\00:09:04.94 and yet the brain kind of shuts off... 00:09:04.97\00:09:06.61 and you... "Give me my five minutes... " 00:09:06.64\00:09:08.21 and you keep doing that trying to stay awake... 00:09:08.24\00:09:10.85 responsible for a large amount of the... 00:09:10.88\00:09:14.25 particularly, single-vehicle accidents 00:09:14.28\00:09:17.59 but many of the multi-vehicle accidents as well 00:09:17.62\00:09:20.32 can be traced back to a sleep- deprivation individual there. 00:09:20.36\00:09:25.66 Pause... 00:09:25.69\00:09:28.10 The shorter your sleep the shorter your life span... 00:09:28.13\00:09:31.23 the two go together... 00:09:31.27\00:09:34.87 longevity and adequate sleep 00:09:34.90\00:09:37.67 are definitely paired together 00:09:37.71\00:09:40.38 for it is said, "I'll sleep when I'm dead. " 00:09:40.44\00:09:45.88 If you accept that philosophy, you're going to find that 00:09:45.91\00:09:52.19 you're going to be dead sooner. 00:09:52.22\00:09:54.99 You're going to have a shorter life span 00:09:55.02\00:09:56.69 and that shorter life span 00:09:56.73\00:09:58.06 is going to have a lot more misery, discomfort 00:09:58.09\00:10:01.76 and illness of various types in it. 00:10:01.80\00:10:03.67 So, for a longer lifespan and a healthier lifespan, 00:10:03.70\00:10:08.50 get your sleep now while you're still alive. 00:10:08.54\00:10:11.77 The elastic band of sleep deprivation 00:10:11.81\00:10:15.61 can stretch only so far before it snaps. 00:10:15.64\00:10:19.41 Pause... 00:10:19.45\00:10:22.18 Human beings are the only species 00:10:22.22\00:10:24.19 that deliberately deprive themselves of sleep 00:10:24.22\00:10:26.89 without any legitimate gain. 00:10:26.92\00:10:28.66 Depriving yourself of sleep is only going to put you behind 00:10:28.69\00:10:32.76 or sputter out. 00:10:32.79\00:10:34.26 There's a sleep-loss epidemic throughout the industrialized 00:10:34.30\00:10:39.30 nations... 00:10:39.33\00:10:40.80 World Health Organization has declared 00:10:40.84\00:10:44.07 a sleep-loss epidemic. 00:10:44.11\00:10:45.54 United States... UK... Western Europe... 00:10:45.57\00:10:48.64 Japan... South Korea... 00:10:48.68\00:10:50.18 all of these countries... 00:10:50.21\00:10:51.61 the majority of the nation is running on less sleep 00:10:51.65\00:10:56.25 than they really need 00:10:56.28\00:10:58.12 and they're suffering all of these consequences 00:10:58.15\00:11:00.69 they talk about here... 00:11:00.72\00:11:03.26 really, metabolic problems 00:11:03.29\00:11:05.96 and psychiatric problems... mental disease... 00:11:05.99\00:11:08.93 all of those are increased and enhanced with sleep deprivation. 00:11:08.96\00:11:14.27 Pause... 00:11:14.30\00:11:18.41 So, what is sleep? 00:11:18.44\00:11:19.87 Pause... 00:11:19.91\00:11:24.31 You know, we spend all this time sleeping, 00:11:24.35\00:11:27.48 what happens when we sleep? 00:11:27.52\00:11:30.09 We are not unconscious... 00:11:30.12\00:11:32.62 we're actually carrying on a lot of very important activities 00:11:32.65\00:11:37.96 in the brain... 00:11:37.99\00:11:39.33 the brain is active 00:11:39.36\00:11:40.70 but it's active in a very different way 00:11:40.73\00:11:42.80 carrying on very different functions 00:11:42.83\00:11:45.07 and you're not awake. 00:11:45.10\00:11:46.77 Consciousness is a condition of the brain in a non-sleep state 00:11:46.80\00:11:54.38 and it depends on eight hours of sleep a day 00:11:54.41\00:11:58.98 to be able to function optimally in that time there. 00:11:59.01\00:12:03.49 One of the first questions I was supposed to look at is: 00:12:03.52\00:12:07.92 How do we know when to go to sleep? 00:12:07.96\00:12:11.19 How does the body decide when to sleep and when to wake up? 00:12:11.26\00:12:14.86 We have a clock built in there 00:12:14.90\00:12:17.53 and let's take a look at the clock here... 00:12:17.57\00:12:22.77 pause... 00:12:22.80\00:12:26.51 here in the... right over here 00:12:26.54\00:12:30.78 in the very center here... 00:12:30.81\00:12:32.18 you see that little green spot there? 00:12:32.21\00:12:35.52 Suprachiasmatic nucleous... 00:12:35.55\00:12:38.42 it's a little cluster of cells... 00:12:38.45\00:12:40.32 there is a large picture of it here... 00:12:40.36\00:12:43.73 down here at the base in the center of the brain... 00:12:43.76\00:12:45.96 or even expanded picture of that here 00:12:45.99\00:12:48.43 of the different kinds of cells that are clustered in there 00:12:48.46\00:12:52.43 and, of course, those cells have axons and dendrites extend out 00:12:52.47\00:12:56.07 to all kinds of other centers and are connected to everything. 00:12:56.10\00:12:59.64 But, you know, in many computers and electronic devices, 00:12:59.67\00:13:04.81 we have little clocks built into them. 00:13:04.85\00:13:06.58 Well, your brain is the same way, 00:13:06.61\00:13:08.52 it's got a clock built in there... 00:13:08.58\00:13:10.45 we call it a circadian clock. 00:13:10.49\00:13:12.75 Circadian means "circa" approximately or about 00:13:12.79\00:13:18.13 and "dia... " day... 00:13:18.16\00:13:20.40 so, Circadian... days... about a day... 00:13:20.46\00:13:23.47 so this is a 24-hour clock, 00:13:23.50\00:13:25.70 there's specialized proteins in there that build up 00:13:25.73\00:13:28.77 and build down 00:13:28.80\00:13:30.14 and the re-balance of this oscillating thing... 00:13:30.17\00:13:32.74 positive and negative feedback... 00:13:32.77\00:13:34.71 and it builds up and goes down... 00:13:34.74\00:13:36.61 goes up... and it oscillates in a 24-hour cycle 00:13:36.64\00:13:40.62 and what controls when and how that is? 00:13:40.68\00:13:44.79 It's a daylight clock... 00:13:44.85\00:13:47.36 it's connected to your eye. 00:13:47.39\00:13:49.86 Now, most of us are familiar with 00:13:49.89\00:13:55.06 the eye 00:13:55.13\00:13:57.23 and the light comes in through the lens 00:13:57.27\00:14:00.00 it shines on the back... we have the Retina there... 00:14:00.04\00:14:02.54 and here's an expanded picture... 00:14:02.57\00:14:05.24 if you take just a little piece of this Retina 00:14:05.27\00:14:08.18 and expand it here, the light comes in this way 00:14:08.21\00:14:11.11 and right at the base right here, 00:14:11.15\00:14:12.88 there's kind of a reflective layer here 00:14:12.91\00:14:14.65 to kind of reflect back as much light as possible 00:14:14.68\00:14:17.55 from the outer surface here 00:14:17.59\00:14:19.39 and these cells here are the rods and the cones 00:14:19.45\00:14:22.52 responsible for real dim black-and-white vision 00:14:22.56\00:14:25.66 as well as more brighter daylight color vision 00:14:25.69\00:14:28.76 with the cones here 00:14:28.83\00:14:30.17 and usually when we think about 00:14:30.20\00:14:32.53 light-sensing cells in the brain, 00:14:32.57\00:14:34.90 these are the cells that sense the visual images 00:14:34.94\00:14:38.91 that are focused on the Retina by the lens of your eye 00:14:38.94\00:14:43.45 and the message as they send 00:14:43.48\00:14:45.58 will go clear to the very back of your brain 00:14:45.61\00:14:47.58 and that's where you will see whatever it is you're looking at 00:14:47.62\00:14:50.95 but these are not the only light-sensitive cells 00:14:50.99\00:14:54.46 in your brain, the rods and the cones... 00:14:54.49\00:14:56.22 there is a third type of light sensor in your eye 00:14:56.26\00:14:59.89 in addition to the rods and the cones 00:14:59.96\00:15:01.86 and that... RGC cells right up here called ganglion cells. 00:15:01.90\00:15:05.77 They're very different and the information they send 00:15:05.83\00:15:11.41 goes out to neurons 00:15:11.44\00:15:12.77 and they do not connect back to the back part of your brain 00:15:12.81\00:15:15.64 and you don't see images or pictures with these cells. 00:15:15.71\00:15:21.52 Instead, these cells send their signals of light 00:15:21.55\00:15:28.09 back to this super chiasmic nucleus here. 00:15:28.12\00:15:32.69 Pause... 00:15:32.73\00:15:35.20 Here is a picture... here's our super cosmic nucleus here, 00:15:35.23\00:15:40.44 a little clock and sunlight comes in here 00:15:40.47\00:15:44.47 when we wake up and open our eyes 00:15:44.51\00:15:47.38 and it's daylight 00:15:47.41\00:15:48.91 and it says, "Hey, it's daylight... " 00:15:48.94\00:15:50.28 and so, the cell starts going into its daylight cycle... 00:15:50.31\00:15:53.05 and it builds up higher and higher and higher 00:15:53.11\00:15:55.55 stronger till the middle of the day 00:15:55.58\00:15:56.92 and then as the day wanes and light dims 00:15:56.95\00:16:00.22 and we move towards night, 00:16:00.26\00:16:01.62 this light's not coming in here... it's cooled down 00:16:01.66\00:16:04.63 and it knows that it's off here 00:16:04.66\00:16:06.66 and it keeps in this daily cycle here 00:16:06.70\00:16:09.00 and it's our daily experience of day time... of sunlight 00:16:09.03\00:16:13.90 that keeps the clock running so our brain knows 00:16:13.94\00:16:17.91 it's day time or night time 00:16:17.97\00:16:20.44 and we were designed to be awake in the day time 00:16:20.48\00:16:23.45 and to be asleep at night time. 00:16:23.48\00:16:25.68 Now, this little center... 00:16:25.71\00:16:28.28 remember these are little neurons here 00:16:28.32\00:16:29.88 and they got their messages 00:16:29.92\00:16:32.22 from the little light-sensor cells here 00:16:32.25\00:16:34.06 which synapsed here... 00:16:34.09\00:16:35.66 gave them the messages of daylight or not 00:16:35.69\00:16:38.26 and it went through its daily clock cycle 00:16:38.29\00:16:40.86 and it's sending out a continuous message 00:16:40.90\00:16:43.43 about sort of where we are in the clock cycle here 00:16:43.47\00:16:45.93 electronically. 00:16:45.97\00:16:47.54 In other words, little electrical impulses 00:16:47.57\00:16:49.97 are coming out 00:16:50.01\00:16:51.34 and they're going down to different... 00:16:51.37\00:16:52.71 several different centers in the brain here 00:16:52.74\00:16:54.58 as well as some down and even in the brain stem here 00:16:54.61\00:16:57.81 they go down to here 00:16:57.85\00:16:59.18 and down in your neck there's some centers there 00:16:59.21\00:17:01.98 and then they come back up to the Pineal gland 00:17:02.02\00:17:05.89 and the Pineal gland is what is going to show us 00:17:05.92\00:17:10.59 what... is going to show everything else in the body 00:17:10.63\00:17:15.23 what time it is 00:17:15.26\00:17:16.83 and when it should be doing what it's supposed to be doing. 00:17:16.87\00:17:19.70 Pause... 00:17:19.73\00:17:23.10 Here's a sort of a little expanded picture. 00:17:23.14\00:17:24.97 Over here you can see these are the Ganglion cells here 00:17:25.01\00:17:29.34 and these little Ganglion cells here 00:17:29.38\00:17:32.98 are the ones that are sending their messages back here. 00:17:33.01\00:17:35.75 Here's our little clock 00:17:35.78\00:17:37.69 and the clock is sending messages out here 00:17:37.72\00:17:42.56 which is going way down here 00:17:42.59\00:17:45.09 up to some other centers back up to the Pineal gland 00:17:45.13\00:17:48.00 which is going to release Melatonin into the blood 00:17:48.03\00:17:50.87 to go to the rest of the body. 00:17:50.90\00:17:52.23 The Ganglion cells are also sending some messages up here 00:17:52.27\00:17:56.77 to some other centers... 00:17:56.81\00:17:58.14 this particular reflex-pass-ways and all these little things 00:17:58.17\00:18:01.84 sends a message back to the eye... to the Iris of your eye 00:18:01.88\00:18:05.71 that opens and closes... 00:18:05.75\00:18:07.68 to control the amount of light going in. 00:18:07.72\00:18:10.19 You shine a bright light in somebody's eye, 00:18:10.22\00:18:11.89 what happens? 00:18:11.92\00:18:13.42 The pupil constricts down. 00:18:13.46\00:18:15.19 You take the bright light away... it opens back up. 00:18:15.22\00:18:19.03 These are the little centers that are controlling that 00:18:19.06\00:18:22.83 and they know because of the Ganglion cells... 00:18:22.86\00:18:26.43 not the rods and cones... 00:18:26.47\00:18:27.80 so the Ganglion cells are controlling that little reflex 00:18:27.84\00:18:30.04 but the one we're interested in right now 00:18:30.11\00:18:32.87 is... that's what's setting your clock. 00:18:32.91\00:18:35.61 So the clock knows when to be running the daylight cycle 00:18:35.64\00:18:39.01 and it's sending the message down here to the Pineal gland 00:18:39.05\00:18:42.42 and the Pineal gland is going to release Melatonin. 00:18:42.45\00:18:45.89 Melatonin is a hormone. 00:18:45.92\00:18:48.22 Hormones are molecules that control other cells 00:18:48.26\00:18:52.56 and in this case, Melatonin is going to control 00:18:52.59\00:18:56.43 all of the other glands and structures in the body 00:18:56.46\00:18:59.63 that need to be running on a Circadian rhythm. 00:18:59.70\00:19:02.84 You know, it's kind of like, 00:19:02.87\00:19:05.57 if you think of all the different organs of your body 00:19:05.61\00:19:08.18 as different instruments in an orchestra, 00:19:08.21\00:19:12.11 now, if everybody put ear plugs in their ears 00:19:12.18\00:19:15.98 and just looked at their music and started playing a song, 00:19:16.02\00:19:20.12 after a while... some would be playing a little faster, 00:19:20.16\00:19:23.99 some a little slower 00:19:24.03\00:19:25.36 and pretty soon they'd be all out of sync 00:19:25.39\00:19:27.43 and that would make terrible disharmony. 00:19:27.46\00:19:29.53 If you really want to sound good, 00:19:29.56\00:19:31.83 what did all the musicians need to do? 00:19:31.87\00:19:34.24 They need to look at the Conductor who is doing the beat 00:19:34.27\00:19:39.21 and showing them when to come 00:19:39.24\00:19:41.11 and keeping them all on the same beat 00:19:41.14\00:19:43.01 so they're all going together at exactly the right time. 00:19:43.04\00:19:45.81 Melatonin is the conductor waving that baton 00:19:45.85\00:19:51.25 and telling every organ when to do its job. 00:19:51.32\00:19:56.69 It's like... if you think about it... 00:19:56.73\00:20:00.46 the different glands put out their hormones 00:20:00.50\00:20:04.77 at different times 00:20:04.80\00:20:06.13 and they know from the Melatonin level 00:20:06.17\00:20:08.77 when it's time for them to do their job. 00:20:08.80\00:20:11.31 Now, some may come at a different time 00:20:11.34\00:20:13.58 just as different instruments may play 00:20:13.64\00:20:15.84 in different parts and pieces 00:20:15.88\00:20:17.25 but they're all watching the conductor 00:20:17.28\00:20:19.41 and they know when to come in on their note 00:20:19.48\00:20:22.05 and play their part based on how the conductor 00:20:22.08\00:20:24.62 is sending out that signal. 00:20:24.65\00:20:26.15 Pause... 00:20:26.19\00:20:29.42 This picture... you don't want to memorize this, 00:20:29.46\00:20:31.73 I just threw this up so you could get a little bit 00:20:31.76\00:20:34.03 of an idea of the complexity 00:20:34.06\00:20:36.83 of the various Neurotransmitters that are used by the neurons 00:20:36.87\00:20:41.57 to communicate to all of these centers 00:20:41.60\00:20:43.51 and eventually to the Pineal gland 00:20:43.54\00:20:45.37 and if you'll notice here how many of these Centers 00:20:45.41\00:20:49.98 could be related to the action of various drugs, 00:20:50.01\00:20:54.52 in other words, we use different medications or drugs 00:20:54.55\00:20:57.32 because they have a biological effect. 00:20:57.35\00:20:59.39 In other words, they'll go to... like... 00:20:59.42\00:21:01.96 here you have Gamma aminobutyric acid 00:21:01.99\00:21:04.49 used as a neurotransmitter here... here... 00:21:04.53\00:21:07.33 over here... over here... 00:21:07.36\00:21:10.03 and we use all these places over here... 00:21:10.07\00:21:11.73 that particular receptor is affected by the Benzodiazepines, 00:21:11.77\00:21:18.27 Ativan, Valium... those types of drugs 00:21:18.31\00:21:21.44 and so, any time you take one of those, 00:21:21.48\00:21:24.25 besides what it's doing over your mid-lower 00:21:24.28\00:21:26.98 or other parts of the brain, 00:21:27.02\00:21:28.65 it's also affecting these areas 00:21:28.68\00:21:30.25 and the same with this Opioid receptors here... 00:21:30.29\00:21:33.89 there's a hydroxytryptophan... 00:21:33.92\00:21:36.52 there is all these different... acetylcholine down here... 00:21:36.56\00:21:41.36 norepinephrine here... 00:21:41.40\00:21:42.86 all of these different things... 00:21:42.93\00:21:44.67 different drugs are affecting all of those in various ways 00:21:44.73\00:21:48.27 and I want you to get a picture of the complexity of the brain, 00:21:48.30\00:21:52.51 the delicateness of all of these little circuits 00:21:52.54\00:21:55.54 that have to work just right for everything to go right. 00:21:55.58\00:21:58.81 When you take a drug, it doesn't just go to the one place 00:21:58.85\00:22:02.08 where, "Oh, I'm taking this 00:22:02.12\00:22:03.45 so that it will make me feel better here 00:22:03.49\00:22:05.19 or I'm taking this for this... " 00:22:05.25\00:22:06.59 it's also going to 100s of different places 00:22:06.62\00:22:09.79 and messing up how they're working as well. 00:22:09.82\00:22:13.19 The ideal is that the brain can run clear and clean 00:22:13.23\00:22:19.00 as God designed it... 00:22:19.03\00:22:20.60 fresh... without interference... outside interference... 00:22:20.64\00:22:25.97 He designed just the right balance 00:22:26.01\00:22:27.61 of everything going on there. 00:22:27.64\00:22:29.84 Sometimes, in emergency cases, 00:22:29.88\00:22:31.98 we have to use certain medications 00:22:32.01\00:22:34.28 to override some terrible problem in there 00:22:34.32\00:22:37.12 but that's why all medications have side effects... 00:22:37.15\00:22:39.85 that's because they not only do what you want them to do, 00:22:39.89\00:22:43.16 they also are going to start jamming up the network 00:22:43.19\00:22:46.39 in all the other places 00:22:46.43\00:22:47.76 so, the ideal is to come back to the perfect diet... 00:22:47.80\00:22:52.37 perfect night's sleep every night... 00:22:52.40\00:22:55.84 so important for all these neurons especially... 00:22:55.90\00:22:59.37 and in those... that situation... 00:22:59.41\00:23:01.61 with proper diet... without toxins, 00:23:01.64\00:23:04.11 without junk food 00:23:04.15\00:23:05.48 and without drugs... 00:23:05.51\00:23:06.85 we're going to get the best functioning of the brain... 00:23:06.88\00:23:11.49 the best mind and synapses that God can communicate with. 00:23:11.55\00:23:16.22 Here's a picture of Melatonin release... 00:23:16.26\00:23:20.70 remember the release of Melatonin here is... 00:23:20.73\00:23:25.10 you know, from the Pineal gland is coming out because 00:23:25.13\00:23:28.57 the lights send it through all these electrical signals... 00:23:28.60\00:23:31.34 through all these little synapses with their chemicals 00:23:31.37\00:23:34.08 and so it knows when to put the Melatonin out. 00:23:34.11\00:23:36.75 Now, if we measured the Melatonin in the blood... 00:23:36.78\00:23:39.38 so, now we've got a hormone in the blood... 00:23:39.41\00:23:41.65 the hormone is Melatonin... here's what it looks like... 00:23:41.68\00:23:44.59 it's made out of hydroxytryptophan. 00:23:44.62\00:23:47.36 Here is your level... going along here... 00:23:47.42\00:23:51.19 Melatonin level in your body is close to zero during the day, 00:23:51.23\00:23:55.26 there's no Melatonin circulating in your blood 00:23:55.30\00:23:57.57 but here in the evening, 00:23:57.60\00:23:59.30 here we've got about 8 o'clock at night, 00:23:59.33\00:24:01.14 it's dark... it's now it says... "Oh, it's night time... " 00:24:01.17\00:24:05.61 and Melatonin levels shoot up and peak up here 00:24:05.67\00:24:09.04 till we get really high levels here 00:24:09.08\00:24:11.51 by the middle of the night 00:24:11.55\00:24:13.18 and then, they drop off precipitously... 00:24:13.21\00:24:15.48 in the morning, we're back down to zero there. 00:24:15.52\00:24:20.12 Pause... 00:24:20.16\00:24:21.56 and it continues "zero" all day long 00:24:21.59\00:24:25.59 and it's this pulsing piece at night time 00:24:25.63\00:24:28.63 that helps you to bring on the process of sleep... 00:24:28.66\00:24:32.20 it's sort of like the... 00:24:32.23\00:24:33.70 it's not what makes your sleep... 00:24:33.74\00:24:36.57 it's what tells you when to sleep 00:24:36.60\00:24:39.37 and there's Melatonin receptors in the brain 00:24:39.44\00:24:42.44 and Melatonin is a key that can push you down that. 00:24:42.48\00:24:45.85 It's sort of like the... 00:24:45.88\00:24:47.45 you got a bunch of runners here... 00:24:47.52\00:24:49.28 ready to run a race 00:24:49.35\00:24:51.72 and you've got somebody on the starting line 00:24:51.75\00:24:53.39 with a starting gun... he says, 00:24:53.46\00:24:54.82 "On your mark... get set... go... " boom... 00:24:54.86\00:24:57.69 well, Melatonin is that firing of that gun... 00:24:57.73\00:25:00.56 getting everybody up moving there on time. 00:25:00.60\00:25:04.00 Pause... 00:25:04.03\00:25:07.87 Here you can see Melatonin controlling 00:25:07.90\00:25:09.80 the output of Cortisol from the adrenal cortex. 00:25:09.84\00:25:13.17 You notice here as the... 00:25:13.21\00:25:18.95 here the red is the Melatonin peaking at night... 00:25:18.98\00:25:22.12 notice Cortisol is down there 00:25:22.18\00:25:24.42 but it's the drop in Melatonin 00:25:24.45\00:25:26.59 lets the adrenal gland know, 00:25:26.62\00:25:28.66 "Oh, it's time to put out Cortisol... " 00:25:28.72\00:25:30.33 so, as this drops... it starts pouring out Cortisol, 00:25:30.36\00:25:33.36 Cortisol is going to peak here in the middle of the morning 00:25:33.40\00:25:37.27 and Cortisol gives you that kind of good 00:25:37.30\00:25:40.67 "top of the morning" feeling... 00:25:40.70\00:25:42.17 everything is zooming along great now... 00:25:42.20\00:25:44.07 it was Melatonin that put it there at the right time. 00:25:44.11\00:25:49.21 All of the other hormones in the body 00:25:49.24\00:25:51.68 run on Circadian... thyroid hormone has a Circadian... 00:25:51.71\00:25:55.55 here's your body temperature. 00:25:55.58\00:25:57.15 Notice here as your Melatonin in green there peaks at night, 00:25:57.19\00:26:01.99 the body temperature drops, 00:26:02.02\00:26:04.23 it actually goes a few degrees cooler 00:26:04.26\00:26:05.99 and that cooling of the body actually induces sleep... 00:26:06.03\00:26:09.70 it helps... one of the things that helps with sleep. 00:26:09.73\00:26:13.37 You sleep better in a cool room. 00:26:13.40\00:26:15.30 You'll sleep better if you're not overheated 00:26:15.34\00:26:18.21 and the Melatonin is helping to push your body into that 00:26:18.24\00:26:22.14 by dropping the body's temperature 00:26:22.18\00:26:24.21 just a little bit there. 00:26:24.25\00:26:26.45 Melatonin changes with age. 00:26:26.48\00:26:28.58 That big high peak... that black line up there 00:26:28.62\00:26:31.99 is children. 00:26:32.02\00:26:33.36 Children have the highest Melatonin levels 00:26:33.39\00:26:36.46 and how much do children sleep? 00:26:36.49\00:26:39.93 A lot... and they need that sleep. 00:26:40.00\00:26:42.36 You know that phrase, "Sleep like a baby... " 00:26:42.40\00:26:44.40 that's Melatonin. 00:26:44.43\00:26:46.00 That's telling the body, "Hey, you need to sleep... 00:26:46.03\00:26:48.60 let's turn on sleep and keeps going. " 00:26:48.64\00:26:51.07 At Adolescence and puberty, there is a drop in that 00:26:51.11\00:26:55.74 and now the "Melatonin peaks" every night 00:26:55.81\00:26:58.51 are not quite as high 00:26:58.58\00:27:00.55 and that helps turn the clock on puberty 00:27:00.58\00:27:03.79 and actually tell the body, "Now is the time... " 00:27:03.85\00:27:06.02 it's part of that change there, 00:27:06.05\00:27:08.09 but it also starts running at that level 00:27:08.12\00:27:10.66 and that's the ideal level of probably for the peak or ideal 00:27:10.73\00:27:16.26 or the body is running at its greatest 00:27:16.30\00:27:18.93 at those levels right there. 00:27:18.97\00:27:20.30 But as time passes, we get to the 40s and 50s... 00:27:20.34\00:27:24.67 the level gets lower. 00:27:24.71\00:27:26.71 Now, we might start having... not sleeping as well... 00:27:26.74\00:27:29.98 not as easy to fall asleep... 00:27:30.01\00:27:31.85 and 50s and 60s levels are lower... 00:27:31.88\00:27:35.52 past 65... I mean we're way down there 00:27:35.55\00:27:39.15 barely peaking out and... 00:27:39.19\00:27:40.69 in other words, with age, we deteriorate 00:27:40.76\00:27:43.02 the amount of Melatonin coming out is less and less. 00:27:43.06\00:27:47.50 This is why we often give a recommendation with age... 00:27:47.53\00:27:51.90 if there is difficulty sleeping, supplementing with Melatonin 00:27:51.93\00:27:56.40 at bedtime can actually be an excellent... 00:27:56.47\00:28:00.01 to restore that Melatonin surge 00:28:00.04\00:28:02.54 back up to its useful levels there 00:28:02.58\00:28:05.01 and so, many people recommend Melatonin at bedtime. 00:28:05.05\00:28:09.68 It's not a drug per se... 00:28:09.72\00:28:12.59 you're just restoring to the body 00:28:12.62\00:28:14.62 what God always designed to be in there 00:28:14.66\00:28:16.86 and helping to push this 00:28:16.89\00:28:18.69 process along and to its right functioning status there. 00:28:18.73\00:28:27.24 Pause... 00:28:27.27\00:28:29.70 Here's another interesting phenomenon in Melatonin. 00:28:29.74\00:28:32.71 In the gray there, 00:28:32.74\00:28:34.78 you'll see the normal Melatonin's peak at night here 00:28:34.84\00:28:39.31 this nice big peak here... 00:28:39.35\00:28:41.32 pause... 00:28:41.35\00:28:42.72 but now see this orange line here... 00:28:42.75\00:28:44.82 this kind of dotted orange line... 00:28:44.85\00:28:46.89 adolescence... the teenagers... high-school-age kids... 00:28:46.92\00:28:51.69 their Melatonin level shifts forward couple of hours 00:28:51.73\00:28:56.67 and what happens is, 00:28:56.70\00:28:58.67 ever see why they don't want to go to bed at night? 00:28:58.70\00:29:02.07 The Melatonin hasn't come up yet... 00:29:02.10\00:29:04.47 they're not sleepy yet 00:29:04.51\00:29:06.41 and they want to stay up late at night. 00:29:06.44\00:29:08.44 The problem isn't on that end, 00:29:08.48\00:29:11.91 the problem seems to be on the other end 00:29:11.95\00:29:13.92 because now... when the rest of the adult world 00:29:13.95\00:29:17.95 has them scheduled to get up and get going in the morning, 00:29:17.99\00:29:21.26 they're in the middle of their deep Melatonin-sleep cycle 00:29:21.29\00:29:24.36 and they need that sleep 00:29:24.39\00:29:25.73 and what we end up doing here 00:29:25.76\00:29:28.46 is cutting off the sleep back here 00:29:28.50\00:29:32.47 because the alarm clock goes off... it's time to start school 00:29:32.50\00:29:35.54 and so, we're actually cutting off this... 00:29:35.57\00:29:37.97 all of this sleep that would be going on out here 00:29:38.01\00:29:41.94 because we didn't go to bed till then 00:29:41.98\00:29:43.51 and now we cut it off here... 00:29:43.55\00:29:44.88 we've really shortened the night's sleep 00:29:44.91\00:29:46.72 and we've cut off that late... you know, that morning sleep 00:29:46.75\00:29:51.29 which is where your REM sleep is so important for the 00:29:51.32\00:29:54.39 many parts of learning and functioning... 00:29:54.42\00:29:57.06 ideally, we would start high school at 9 or 10 in the morning 00:29:57.09\00:30:01.80 and then extend it later in the afternoon to get in the hours 00:30:01.83\00:30:06.47 but that would be the ideal for learning. 00:30:06.50\00:30:10.51 There have been school systems that have tried that 00:30:10.54\00:30:13.61 with excellent results. 00:30:13.64\00:30:15.58 One of them... everybody's grade point went up... 00:30:15.61\00:30:18.75 most students went up above one letter... 00:30:18.78\00:30:21.68 you know, if they were a C student, 00:30:21.72\00:30:23.35 they became a B student... 00:30:23.39\00:30:24.72 if they were a B student, they became an A student. 00:30:24.75\00:30:26.55 ACT and SAT scores also went up significantly 00:30:26.59\00:30:31.36 with switching to this later cycle 00:30:31.39\00:30:35.46 because now they were learning in the right place. 00:30:35.50\00:30:39.03 The brain is essential for learning 00:30:39.07\00:30:42.97 and the sleep is essential for the brain. 00:30:43.00\00:30:47.48 So, let's take a look at what really is sleep... 00:30:47.51\00:30:49.61 what is going on there. 00:30:49.64\00:30:51.48 Here is a diagram of what happens in sleep. 00:30:51.51\00:30:56.12 So, we have here levels of sleep. 00:30:56.15\00:30:58.65 At the top level right here is being awake. 00:30:58.72\00:31:02.39 Now, as we move down in here, the very first level here... 00:31:02.42\00:31:06.66 this next level just below wake is what we call: REM Sleep. 00:31:06.70\00:31:10.93 REM stands for: Rapid Eye Movement 00:31:10.97\00:31:14.07 and it was observed that 00:31:14.10\00:31:16.60 at certain times when people are sleeping, 00:31:16.67\00:31:19.34 their eyelids are closed... but underneath their closed eyelids, 00:31:19.37\00:31:22.71 their eyeballs are darting back and forth 00:31:22.74\00:31:24.98 and around and all over the place 00:31:25.01\00:31:26.38 it's just this jerking random movements of the eyes 00:31:26.41\00:31:30.49 and so they call it: Rapid Eye Movement. 00:31:30.52\00:31:33.25 They don't know exactly why the eyes do that 00:31:33.29\00:31:35.99 during this particular sleep 00:31:36.02\00:31:37.49 but that's a normal physiological thing 00:31:37.53\00:31:40.20 to have this rapid eye movement 00:31:40.23\00:31:42.06 in this one particular phase of sleep. 00:31:42.10\00:31:44.60 In the other parts of sleep, the eyes are resting quietly 00:31:44.63\00:31:50.01 and not doing this rapid eye movement, 00:31:50.07\00:31:51.94 so, we call those: Non-REM Sleep. 00:31:51.97\00:31:54.48 So, we have REM Sleep and Non-REM Sleep 00:31:54.51\00:31:59.11 and the REM Sleep is divided into stages... 00:31:59.15\00:32:03.72 Stage one... two... three... four... 00:32:03.79\00:32:05.39 as we go deeper and deeper into very deep sleep here. 00:32:05.45\00:32:08.42 So, when we start off the night, 00:32:08.46\00:32:10.69 we go through these cycles of sleep... 00:32:10.73\00:32:12.59 they're about an hour and a half... 00:32:12.63\00:32:14.43 about 90 minutes will go through a cycle 00:32:14.46\00:32:16.87 and then come back up 00:32:16.90\00:32:18.30 and then another 90-minute cycle and come back up 00:32:18.33\00:32:21.00 another 90-minute cycle and on through there 00:32:21.04\00:32:23.64 we'll do this approximately 90-minute cycles here 00:32:23.67\00:32:26.47 through the night till we've had gotten our eight hours 00:32:26.54\00:32:29.58 and it's time to wake up and stay awake. 00:32:29.61\00:32:31.91 There can be some brief awakenings... 00:32:31.95\00:32:34.22 these really brief ones... 00:32:34.28\00:32:36.42 you probably don't remember in the morning 00:32:36.45\00:32:38.39 and didn't realize you woke up 00:32:38.42\00:32:39.85 and thought you slept the whole night 00:32:39.89\00:32:41.22 but there was actually... 00:32:41.26\00:32:42.62 if we measure the brain waves there... 00:32:42.66\00:32:43.99 there's this little peak here. 00:32:44.03\00:32:45.59 So, what is the brain doing during these various stages? 00:32:45.63\00:32:49.56 We can hook up wires and measure the electrical activity 00:32:49.60\00:32:53.50 and something we call an EEG... 00:32:53.54\00:32:57.07 here is a picture here... on the top here, we can see here 00:32:57.11\00:33:01.64 this is the EEG of a normal awake brain... 00:33:01.68\00:33:06.55 they're small... low voltage 00:33:06.58\00:33:08.65 and they're random all over the place 00:33:08.68\00:33:10.82 not in particular frequencies... 00:33:10.85\00:33:12.45 they're just darting everywhere 00:33:12.49\00:33:14.06 and that is the normal, conscious electrical activity 00:33:14.09\00:33:17.69 as you think "thoughts" 00:33:17.73\00:33:19.09 this neuron is sending a message here and there 00:33:19.13\00:33:21.06 and you're getting sensory input in... 00:33:21.10\00:33:23.60 you're doing motor things, 00:33:23.63\00:33:24.97 you're thinking about things 00:33:25.00\00:33:26.33 and there's all of these different little electrical 00:33:26.37\00:33:27.90 activities just bouncing all over the place 00:33:27.97\00:33:30.34 and this is what it looks like. 00:33:30.37\00:33:32.57 There is a place... those are called: Beta waves. 00:33:32.61\00:33:36.71 There is a state called: Alpha waves... 00:33:36.75\00:33:38.61 we find when someone's very relaxed and meditative... 00:33:38.65\00:33:42.28 peaceful state of mind... 00:33:42.32\00:33:43.95 they're at the beach watching the waves... 00:33:43.99\00:33:46.92 everything is happy 00:33:46.96\00:33:48.29 and they're not stressing their mind over anything 00:33:48.32\00:33:50.19 and these Alpha waves are very beneficial 00:33:50.23\00:33:53.06 but they're not sleep... 00:33:53.09\00:33:54.43 the person is conscious... 00:33:54.46\00:33:55.86 and able to think about things 00:33:55.93\00:33:57.47 and talk and respond appropriately... 00:33:57.50\00:34:00.14 sense the environment... 00:34:00.17\00:34:01.50 enjoy the beauty of the scenery. 00:34:01.54\00:34:03.30 Here's what REM sleep looks at... this highest level 00:34:03.34\00:34:07.41 and if you look at it, one thing you'll notice is... 00:34:07.44\00:34:11.48 it looks almost identical to the "awake state" 00:34:11.51\00:34:14.62 and really if you're looking at the EEG, 00:34:14.65\00:34:17.95 you really can't tell the difference between the awake 00:34:17.99\00:34:21.72 and the... the REM sleep. 00:34:21.76\00:34:25.56 This is where dreaming takes place... 00:34:25.59\00:34:28.43 dreaming is that state... 00:34:28.46\00:34:30.80 very important for organizing creativity 00:34:30.83\00:34:36.77 so you sort everything out... get the new thoughts going 00:34:36.81\00:34:40.34 and during dreams, you're sort of living through 00:34:40.38\00:34:43.51 these random pieces being pulled from here to there 00:34:43.55\00:34:46.65 and connected in unusual ways 00:34:46.68\00:34:49.15 that you were never connected before in your life 00:34:49.18\00:34:52.02 but it's just one of those things 00:34:52.05\00:34:54.16 that happens usually when you wake up 00:34:54.19\00:34:56.46 the dream that REM sleep dream passes 00:34:56.49\00:34:58.66 but that's what the electrical activity looks like 00:34:58.69\00:35:02.60 during REM sleep. 00:35:02.63\00:35:04.67 Now, as we move into the non-REM sleep, 00:35:04.70\00:35:07.40 we get a much more regular... 00:35:07.44\00:35:10.04 Stage one: you see it's a little bit... 00:35:10.07\00:35:12.01 much more regular, 00:35:12.07\00:35:13.41 it looks a little bit like the REM sleep 00:35:13.44\00:35:14.98 but we're starting to become more regular 00:35:15.01\00:35:16.78 and if you look at the closing paradigm, 00:35:16.81\00:35:18.71 you can see that this definitely moving... 00:35:18.75\00:35:20.62 well, they call them Theta waves... 00:35:20.65\00:35:22.05 and as we go deeper into there... these Theta waves, 00:35:22.08\00:35:25.25 we get these things called: Sleep Spindles here. 00:35:25.29\00:35:28.39 It's like it goes: Bishhhht... 00:35:28.42\00:35:29.86 and every few seconds... Bishhhht... 00:35:29.89\00:35:32.26 Bishhhht... 00:35:32.29\00:35:33.80 and we get these K waves these little flumps in there... 00:35:33.83\00:35:36.23 fascinating activity there what's going on... 00:35:36.26\00:35:40.07 it's actually memories from the day 00:35:40.10\00:35:43.74 being stored in your brain... it's fantastic. 00:35:43.77\00:35:47.51 As we go deeper down here you get these Delta waves 00:35:47.54\00:35:51.48 really big slow wave activity spreading through the brain. 00:35:51.51\00:35:56.52 They're not random things going from here to there... 00:35:56.55\00:36:02.19 these Delta waves... beautiful... 00:36:02.22\00:36:05.03 they start right here in your frontal lobe 00:36:05.06\00:36:07.70 you know, where your conscious thought 00:36:07.73\00:36:10.33 and everything is right here... 00:36:10.37\00:36:11.70 they start right there... and shooooo... 00:36:11.73\00:36:13.70 they spread back over the brain... 00:36:13.74\00:36:15.57 it's sort of like, during the day and conscious... 00:36:15.60\00:36:18.84 there's random things going everywhere... 00:36:18.87\00:36:20.58 but imagine yourself at the... a large crowd and audience 00:36:20.61\00:36:25.58 at a football show and they do a wave... 00:36:25.61\00:36:27.35 you know, one side people stand up and raise their hands 00:36:27.38\00:36:30.72 and then sit down... 00:36:30.75\00:36:32.09 and the people next to them... 00:36:32.12\00:36:33.69 and as they go... they just spread... 00:36:33.72\00:36:35.36 there's a wave of people going all around the room... 00:36:35.39\00:36:37.46 makes a circle around here and it goes again. 00:36:37.49\00:36:39.26 That's what this is. 00:36:39.29\00:36:41.03 Every neuron in the brain is firing in sequence 00:36:41.06\00:36:44.13 from the front to the back. 00:36:44.17\00:36:45.83 It's not sending their axons here... 00:36:45.87\00:36:47.20 they're each firing electrolytes... 00:36:47.24\00:36:49.04 all they're trying to get this high voltage 00:36:49.07\00:36:50.97 but slow wave activity... fantastic... 00:36:51.01\00:36:55.18 so, this is what's taking place 00:36:55.21\00:36:58.51 during these really deep cycles here... 00:36:58.55\00:37:01.92 these really deep cycles that happen 00:37:01.95\00:37:05.25 first thing in the night... 00:37:05.29\00:37:06.62 so important for restoring your body 00:37:06.65\00:37:08.86 and getting health 00:37:08.92\00:37:10.69 but there's also some deep cleaning going on there. 00:37:10.73\00:37:15.13 Pause... 00:37:15.16\00:37:18.33 You know, during the day your brain builds up toxins... 00:37:18.37\00:37:21.94 waste products... metabolic by-products... 00:37:21.97\00:37:26.17 drugs might be there... 00:37:26.21\00:37:27.81 all kinds of stuff builds up around there 00:37:27.84\00:37:30.01 and these neurons can't function well 00:37:30.05\00:37:32.11 with all of that other stuff contaminating them... 00:37:32.15\00:37:35.15 the various waste products and everything. 00:37:35.18\00:37:36.75 We need a clean wash water to flush and clean that all out 00:37:36.79\00:37:40.52 and it's the most amazing thing that happens 00:37:40.56\00:37:43.69 as these Delta waves start coming across the brain... 00:37:43.73\00:37:46.19 if you imagine your brain tissue 00:37:46.23\00:37:48.76 looking at... like a picture of a city 00:37:48.80\00:37:51.07 and there's city block with all of these streets 00:37:51.10\00:37:53.74 and avenues crisscrossing back and forth 00:37:53.77\00:37:56.20 and there's a river on each side here 00:37:56.24\00:37:58.51 one.. a river of clean water over here 00:37:58.57\00:38:00.91 and one... the drain river over here. 00:38:00.98\00:38:03.31 What happens during this Delta-wave sleep? 00:38:03.35\00:38:06.41 If you could imagine at night every building in the city 00:38:06.45\00:38:11.19 shrunk down to about 60% of its normal size... 00:38:11.22\00:38:14.76 that means all the streets widened up 00:38:14.79\00:38:17.56 and suddenly you got these huge wide spaces between everything 00:38:17.59\00:38:21.13 and clear clean water... cerebral spinal fluid 00:38:21.16\00:38:25.27 pours out of clean water... flushes through the brain 00:38:25.30\00:38:28.90 washing all of the debris... the waste product... 00:38:28.94\00:38:32.51 the toxins... everything is washed out into the other river 00:38:32.54\00:38:36.01 and washed off down and out to the sea to get rid of it 00:38:36.04\00:38:39.41 and for this 90 minutes here while you're in that deep cycle, 00:38:39.48\00:38:44.12 all of the brain has just opened wide open 00:38:44.15\00:38:46.62 flushing this clear cerebral spinal fluid... 00:38:46.65\00:38:49.06 just cleaning the whole thing out 00:38:49.09\00:38:50.53 and then, very shortly, it goes through another cycle. 00:38:50.56\00:38:54.73 You know, it expands back out 00:38:54.76\00:38:56.67 but then it does it again... it shrinks down 00:38:56.70\00:38:58.93 and the water flushes it through again... 00:38:58.97\00:39:01.17 we've got another power wash here... 00:39:01.20\00:39:03.14 very, very important to get those power washes 00:39:03.20\00:39:05.94 cleaning the brain. 00:39:05.97\00:39:08.18 You know, a little thing to think about what's... 00:39:08.21\00:39:10.05 imagine the brain as an office 00:39:10.11\00:39:12.81 and in the office, you've got this desk 00:39:12.85\00:39:15.02 and during the day everything you thought and heard 00:39:15.05\00:39:18.05 and imagined came pouring in 00:39:18.09\00:39:20.02 and it all just kind of piled up on your desk... 00:39:20.06\00:39:22.06 everything you heard... everything you did... 00:39:22.09\00:39:24.06 it's just... everything is there. 00:39:24.13\00:39:25.59 Important... unimportant stuff... 00:39:25.63\00:39:26.96 everything is there... 00:39:27.00\00:39:28.93 at night, it's closing time... 00:39:28.96\00:39:31.13 time to go to sleep 00:39:31.17\00:39:32.50 and it's like you pull down the shades... 00:39:32.53\00:39:34.67 put out the "Closed" sign you become unconscious 00:39:34.70\00:39:37.84 but the cleaning crew comes in, the Janitors... 00:39:37.87\00:39:40.98 and they do this deep cleaning, 00:39:41.01\00:39:42.78 washing... cleaning... crevices... 00:39:42.81\00:39:44.35 everything in the office 00:39:44.41\00:39:45.75 but on your desk... you've got important stuff among those 00:39:45.78\00:39:50.99 as you sort through the papers, 00:39:51.02\00:39:52.35 here's some really important stuff... 00:39:52.39\00:39:53.72 maybe you were learning to ride a bicycle that day 00:39:53.76\00:39:57.06 or maybe you were learning to play a song on the piano... 00:39:57.09\00:39:59.43 all of that activity... those motor activities 00:39:59.49\00:40:02.53 is important stuff you want to save... 00:40:02.56\00:40:04.20 by-the-way, your frontal lobe actually controls and sorts out 00:40:04.23\00:40:08.20 and knows what's important and what's not 00:40:08.24\00:40:09.77 and if you... it's important... you can actually save it 00:40:09.80\00:40:13.94 and these... these bzzz... bzzzz... 00:40:13.98\00:40:20.75 these little sleep spindles... 00:40:20.82\00:40:22.15 that's actually passing from your Hippocampus... 00:40:22.18\00:40:25.89 your short-term memory up to your cortex 00:40:25.92\00:40:28.09 where you got to put in this array of this complex cortex 00:40:28.12\00:40:33.19 that's doing everything important for you 00:40:33.23\00:40:35.33 and remembering everything... 00:40:35.36\00:40:37.17 your long-term storage... it's all saved there 00:40:37.20\00:40:40.70 and it's this little bzzz... bzzz... 00:40:40.74\00:40:42.30 they can actually measure them 00:40:42.37\00:40:44.14 someone that's been working hard on a piano or whatever... 00:40:44.17\00:40:47.38 it goes to those parts of the brain 00:40:47.41\00:40:49.04 where you would store that activity... 00:40:49.08\00:40:50.65 they can make sure all this is going there 00:40:50.71\00:40:52.21 and if you had other types of things... it's going there 00:40:52.25\00:40:55.08 and it goes to the right places to save what you need there. 00:40:55.12\00:40:57.89 It's sort of like a filing cabinet in the office, 00:40:57.92\00:41:00.26 you take all the important things 00:41:00.29\00:41:01.62 and you're putting them in the right folder 00:41:01.66\00:41:02.99 so you can find them again. 00:41:03.02\00:41:04.43 A person laying the... 00:41:04.46\00:41:05.79 they can take and practice at the piano 00:41:05.83\00:41:07.66 over and over and over 00:41:07.70\00:41:09.03 and the piece still seems like it's not quite right... 00:41:09.06\00:41:10.87 but they're doing their best to practice it... 00:41:10.90\00:41:12.73 they go to sleep at night... get a good sound sleep... 00:41:12.77\00:41:16.44 it all gets filed perfectly... 00:41:16.50\00:41:18.17 next morning they go out to the piano 00:41:18.21\00:41:21.74 and suddenly now, it just flows. 00:41:21.78\00:41:23.75 Why? because they're not pulling it from the short-term... 00:41:23.81\00:41:26.35 it's already stored in the long coordinated memory... 00:41:26.38\00:41:29.52 the Cerebellum's coordinating it... 00:41:29.58\00:41:31.45 everything's working good there 00:41:31.49\00:41:32.82 but it's not just important to save the important stuff, 00:41:32.85\00:41:35.69 we've got to get rid of the unimportant stuff. 00:41:35.72\00:41:40.36 I mean, you probably... when you got into... 00:41:40.40\00:41:44.97 went into the store or something, 00:41:45.00\00:41:47.07 you remember where you parked your car out in the parking lot. 00:41:47.10\00:41:49.50 Well, that's important to remember a few hours later 00:41:49.54\00:41:52.37 when you want to find your car, 00:41:52.41\00:41:53.78 but you don't need to remember next year 00:41:53.81\00:41:57.11 where you parked it today. 00:41:57.15\00:41:58.48 That's unimportant information and it's sort of like, 00:41:58.51\00:42:02.18 you store all of this stuff on a flash drive 00:42:02.22\00:42:04.39 and the flash drive is full of everything you've heard and seen 00:42:04.45\00:42:08.19 unimportant stuff... 00:42:08.22\00:42:09.56 what we need to do for the next day... 00:42:09.59\00:42:11.69 you can only hold so much on the flash drive 00:42:11.73\00:42:13.26 so, what do you do? 00:42:13.29\00:42:14.63 You go through and delete it, you clean it out 00:42:14.66\00:42:16.56 and we find that up in the first and-second-stage sleep here, 00:42:16.60\00:42:20.14 we're actually... go through 00:42:20.17\00:42:24.34 and we can actually here... store... 00:42:24.37\00:42:27.71 we're actually cleaning up the flash drive 00:42:27.74\00:42:29.94 here in the Hippocampus... 00:42:29.98\00:42:31.61 we're just cleaning out the flash drive... 00:42:31.65\00:42:32.98 getting rid of all of the unimportant stuff... deleting it 00:42:33.01\00:42:34.82 by now, we've got the desk cleaned off... 00:42:34.85\00:42:37.02 we've saved the important stuff and filed it... 00:42:37.05\00:42:38.92 we've deleted the unimportant stuff 00:42:38.95\00:42:41.12 and now it's time for REM sleep. 00:42:41.16\00:42:43.32 Now is the time for creativity... 00:42:43.36\00:42:45.46 your desk is clean... the office is washed... 00:42:45.49\00:42:47.83 there's nothing to distract 00:42:47.86\00:42:49.20 and the brain can actually start taking different things 00:42:49.23\00:42:52.63 and come up with creative stuff... 00:42:52.67\00:42:55.40 all kinds of... the important... 00:42:55.44\00:42:58.14 the things that make life valuable... 00:42:58.17\00:42:59.84 happen in this REM sleep. 00:42:59.87\00:43:01.68 Lot of people manage sleep deprivation with Caffeine. 00:43:01.71\00:43:08.38 What is it really doing here? 00:43:08.42\00:43:11.25 In this graph right here, 00:43:11.29\00:43:14.06 we're looking at a couple of things right here... 00:43:14.09\00:43:19.59 there is a substance in your brain called: Adenosine. 00:43:19.63\00:43:25.13 Adenosine builds up... starting in the morning 00:43:25.17\00:43:31.44 your Adenosine level starts building up 00:43:31.47\00:43:33.51 and it builds up through the day in the brain 00:43:33.54\00:43:36.41 and when the Adenosine level is high, 00:43:36.44\00:43:38.71 you feel tired. 00:43:38.75\00:43:40.52 Tiredness is Adenosine being built up in the brain 00:43:40.55\00:43:46.12 and the more tired you get... 00:43:46.15\00:43:48.76 is because you've got the Adenosine built up... 00:43:48.79\00:43:52.56 that is the function of it there 00:43:52.59\00:43:56.83 and is it... there's special receptors on all the cells, 00:43:56.87\00:44:00.57 they know Adenosine is building up 00:44:00.60\00:44:02.57 and they know... they're telling you, "We're tired. " 00:44:02.60\00:44:08.44 Well, the REM line there... there is this ability 00:44:08.48\00:44:14.22 that's sort of... I want to call it a wakefulness drive, 00:44:14.25\00:44:17.25 Cortisol and all the things contributed to it... 00:44:17.29\00:44:19.72 it's... kind of starts off low in the morning, 00:44:19.75\00:44:22.12 gets stronger and stronger by the middle of the afternoon 00:44:22.16\00:44:24.53 and then it fades away. 00:44:24.56\00:44:25.89 Melatonin is what's going to trigger that change right there 00:44:25.93\00:44:30.63 but Caffeine is going to alter that. 00:44:30.67\00:44:34.27 If you look at Adenosine and Caffeine, 00:44:34.30\00:44:37.84 you'll see here these... in the center of it here, 00:44:37.87\00:44:42.24 this part right here looks very, very similar to this part here 00:44:42.28\00:44:47.88 and indeed, Caffeine and Adenosine 00:44:47.92\00:44:52.35 can both fit into the same little Receptor there 00:44:52.39\00:44:56.99 but it's like a key that fits in 00:44:57.03\00:44:59.83 but it doesn't quite have all the right notches on it 00:44:59.86\00:45:03.33 so, it fits in the keyhole but you can't turn the lock 00:45:03.37\00:45:06.84 and that's what's here... so Adenosine... 00:45:06.87\00:45:09.54 so, Caffeine pushes Adenosine out of the way... 00:45:09.60\00:45:13.01 it gets in there... 00:45:13.04\00:45:14.51 but it doesn't tell you you're tired... 00:45:14.54\00:45:16.41 now, suddenly, I'm feeling awake... 00:45:16.44\00:45:18.25 and so, because of that now... 00:45:18.31\00:45:24.55 that's where we get the lift from Caffeine... 00:45:24.59\00:45:27.36 it's displacing Adenosine. 00:45:27.39\00:45:29.19 Here's a very fascinating picture right here. 00:45:29.22\00:45:32.33 The top picture is a normal brain 00:45:32.36\00:45:36.67 with all of the Adenosine in there. 00:45:36.70\00:45:40.94 You need Adenosine to sleep 00:45:40.97\00:45:44.74 but if you go in and... with Caffeine... 00:45:44.77\00:45:48.94 particularly Caffeine in the afternoon... 00:45:48.98\00:45:53.08 although there's even a residual from morning coffee 00:45:53.11\00:45:57.89 but Caffeine later in the day 00:45:57.92\00:46:00.02 and especially Caffeine in the evening, 00:46:00.06\00:46:03.12 is going to really displace all of that Adenosine 00:46:03.16\00:46:06.39 so, you're going to feel awake... alert... 00:46:06.43\00:46:08.03 and you can just keep going but now it's time to go to sleep 00:46:08.06\00:46:11.67 and you want to go to sleep and what happens to your sleep? 00:46:11.70\00:46:15.27 You see the difference in the activity... 00:46:15.30\00:46:17.87 all that bright yellow is actually... 00:46:17.94\00:46:20.44 because remember sleep is a reactive state of the brain 00:46:20.48\00:46:23.61 and here this very active state of the brain... 00:46:23.65\00:46:27.45 you can see it there with all of the Adenosine 00:46:27.48\00:46:31.25 and so it's going all that normal sleep activity, 00:46:31.29\00:46:33.86 it's going in the deep... the Delta-wave sleep, 00:46:33.89\00:46:36.42 it's doing the deep cleaning, 00:46:36.46\00:46:37.79 it's storing stuff... 00:46:37.83\00:46:39.16 it's deleting your flash drive, 00:46:39.19\00:46:40.53 it's getting everything ready for the next day 00:46:40.56\00:46:42.50 but with Caffeine, we've displaced all that Adenosine 00:46:42.56\00:46:46.53 so the cells aren't going on and doing the sleep activity 00:46:46.57\00:46:50.41 that they... they need. 00:46:50.44\00:46:51.77 Remember, that's the normal picture. 00:46:51.81\00:46:57.01 Here is the sleep cycle on Caffeine. 00:46:57.05\00:47:02.42 Notice, we're barely even touching the Stage 3 00:47:02.48\00:47:06.45 not into Stage 4 at all, just briefly there 00:47:06.52\00:47:10.43 so, those nice deep cleaning cycles... they're gone 00:47:10.49\00:47:14.66 and look at all of the brief awakenings here all night long 00:47:14.73\00:47:18.43 and it keeps going... look what happened to the REM sleep, 00:47:18.50\00:47:22.20 we barely got a few specks of REM sleep 00:47:22.24\00:47:24.47 through the entire night here 00:47:24.51\00:47:25.94 and again, bouncing around here, so... 00:47:25.97\00:47:28.98 now, you may not feel these brief awakenings, 00:47:29.01\00:47:31.88 you might think, "Well, I was asleep" 00:47:31.91\00:47:33.38 but your brain was. 00:47:33.42\00:47:35.08 I mean, this brain right here 00:47:35.12\00:47:37.15 is not doing what this brain was doing back here. 00:47:37.19\00:47:41.92 This is what you want your sleep cycle to look like... 00:47:41.96\00:47:45.69 this is your sleep cycle on Caffeine. 00:47:45.73\00:47:48.16 You're not getting the same preparation for the next day, 00:47:48.20\00:47:53.03 you're not storing the same material, 00:47:53.07\00:47:55.10 you're not cleaning out your flash drive, 00:47:55.14\00:47:57.14 you're not doing the deep cleaning 00:47:57.21\00:47:58.87 and, of course, this is a real simplification, 00:47:58.91\00:48:01.61 there's a lot of complex things that are still happening 00:48:01.64\00:48:03.95 and we're still learning more about it 00:48:03.98\00:48:05.31 but you can see that Caffeine is a real detriment 00:48:05.35\00:48:10.85 to a normal sleep cycle. 00:48:10.89\00:48:13.25 If you want to have a brain 00:48:13.29\00:48:15.62 that's actually going to function right 00:48:15.66\00:48:17.29 and do everything right, 00:48:17.33\00:48:18.69 you're going to need to get rid of the Caffeine, 00:48:18.73\00:48:23.20 you know, we've been advised for many decades now 00:48:23.23\00:48:27.64 that Caffeine is something that needs to be eliminated 00:48:27.67\00:48:30.61 and removed from our diets entirely. 00:48:30.64\00:48:34.71 You know, it's one of the things that you're going to have to do 00:48:34.74\00:48:38.91 if you want to have a normal, good sleep cycle... 00:48:38.95\00:48:42.95 if you want to have normal neurons, 00:48:42.98\00:48:44.72 if we have a normal functioning cortex... frontal lobes... 00:48:44.75\00:48:50.13 all of that depends on a good night's sleep 00:48:50.16\00:48:52.13 and good night's sleep depends on being Caffeine free. 00:48:52.16\00:48:56.53 Just remember the difference 00:48:56.56\00:48:58.33 between those two pictures there. 00:48:58.37\00:48:59.90 Pause... 00:48:59.93\00:49:02.10 What about sleeping pills to help you sleep? 00:49:02.14\00:49:04.44 Do they overcome Caffeine? 00:49:04.47\00:49:06.04 No, sleeping pills... is sort of like 00:49:06.07\00:49:10.95 a mild version of General Anesthesia. 00:49:10.98\00:49:15.82 Now, when you go into the operating room 00:49:15.85\00:49:19.29 and they give you an Anesthetic agent 00:49:19.32\00:49:22.69 to make you unconscious so you don't feel pain, 00:49:22.72\00:49:26.03 you don't feel the surgery 00:49:26.06\00:49:28.23 and the surgeon can go ahead and operate easily 00:49:28.26\00:49:31.70 and finish the surgery without you being in pain 00:49:31.73\00:49:35.14 or thrashing around... anything... 00:49:35.17\00:49:36.87 your brain is just turned off. 00:49:36.91\00:49:40.08 Remember, sleep is a very active state... 00:49:40.11\00:49:43.58 there's a lot of things happening, 00:49:43.65\00:49:44.98 Anesthetics go to the Neurons and anesthetize them, 00:49:45.01\00:49:50.99 they put them out, they just knock them out, 00:49:51.02\00:49:53.19 they stop working there 00:49:53.22\00:49:55.26 and in this knock-out state, they're not sleeping, 00:49:55.29\00:49:58.59 they're not doing anything, you're not conscious, 00:49:58.63\00:50:01.90 you're asleep... 00:50:01.96\00:50:03.30 but that's what the sleeping pills are doing. 00:50:03.33\00:50:06.80 So, you're not awake but you're still deprived of sleep, 00:50:06.84\00:50:12.71 you're not actually getting the sleep because 00:50:12.74\00:50:16.31 the sleeping pills are just anesthetizing you. 00:50:16.34\00:50:19.91 Pause... 00:50:19.95\00:50:23.99 What about alcohol? 00:50:24.02\00:50:25.39 A lot of people think that a glass of wine at bedtime 00:50:25.45\00:50:30.89 is an ideal way... nightcap... that gets you ready 00:50:30.93\00:50:36.36 and helps you fall asleep 00:50:36.40\00:50:37.73 and it's just the way to end the day... 00:50:37.77\00:50:40.57 calm everything down and put you to sleep. 00:50:40.60\00:50:43.51 What does alcohol do to the brain? 00:50:43.57\00:50:45.97 Alcohol is going to just... 00:50:46.01\00:50:48.71 it's going to put it out. 00:50:48.74\00:50:51.41 It's like the sleeping pill. 00:50:51.45\00:50:54.02 Alcohol shuts down the brain depriving you of sleep 00:50:54.05\00:51:00.79 particularly REM sleep. 00:51:00.86\00:51:03.59 With alcohol... an alcoholic is very, very deprived of REM sleep 00:51:03.63\00:51:11.13 because it knocks out REM sleep 00:51:11.17\00:51:13.94 even more than some of the other phases of sleep. 00:51:13.97\00:51:16.71 There's almost no REM sleep at all in an alcoholic. 00:51:16.74\00:51:20.98 In the Emergency Room we sometimes get alcoholics 00:51:21.04\00:51:25.21 in various kinds of crisis... 00:51:25.28\00:51:26.85 what we call: Acute Alcohol withdrawal... 00:51:26.88\00:51:29.65 it can go into various DTs and stuff 00:51:29.68\00:51:32.32 and one of the aspects of acute alcohol withdrawal 00:51:32.35\00:51:36.49 is hallucinations. 00:51:36.52\00:51:39.53 Hallucinations... it's like your REM sleep... 00:51:39.56\00:51:44.83 all of these various, you know, bizarre images 00:51:44.87\00:51:50.11 and thoughts and things coming together 00:51:50.14\00:51:52.57 and colliding in various ways 00:51:52.64\00:51:54.18 and during the alcohol withdrawal, 00:51:54.21\00:51:58.91 the brain which has been so deprived of REM sleep... 00:51:58.95\00:52:01.88 now the alcohol is off... 00:52:01.92\00:52:03.39 the alcohol is all worn off 00:52:03.42\00:52:04.85 and now they're in this withdrawal state 00:52:04.89\00:52:06.76 and there's like the brain says, 00:52:06.79\00:52:08.39 "We're going to catch up on REM sleep" 00:52:08.42\00:52:10.03 and it starts going into REM sleep while they're still awake 00:52:10.06\00:52:14.33 and they're seeing people that aren't there 00:52:14.36\00:52:17.00 and snakes crawling up the wall 00:52:17.03\00:52:18.67 and spiders crawling across their bed 00:52:18.70\00:52:21.04 and all kinds of stuff like that 00:52:21.07\00:52:23.04 and it's very dysphoric type of REM that's coming back there 00:52:23.07\00:52:29.14 while they're awake in these hallucinations 00:52:29.21\00:52:31.18 and we usually give people sedatives to put the brain out 00:52:31.21\00:52:36.08 because these are so harmful. 00:52:36.15\00:52:37.85 Of course, with the alcohol withdrawal, they go to seizures 00:52:37.89\00:52:40.29 and a lot of other things 00:52:40.32\00:52:41.66 so we want to usually knock that down 00:52:41.69\00:52:43.63 and prevent that 00:52:43.66\00:52:44.99 but alcohol is really 00:52:45.03\00:52:48.33 not the choice if you want a good night's sleep. 00:52:48.36\00:52:52.43 I know it's not the popular culture right now 00:52:52.47\00:52:56.47 but the reality is: Alcohol will not give you 00:52:56.50\00:53:00.48 the sleep you need. 00:53:00.51\00:53:01.84 What are the things that can help you get the sleep you need? 00:53:01.88\00:53:05.35 Adequate exercise during the day. 00:53:05.38\00:53:08.28 Many of us go to bed... we're exhausted mentally 00:53:08.32\00:53:12.19 but we physically haven't had the exercise. 00:53:12.22\00:53:15.02 You need a good workout at the gym 00:53:15.06\00:53:16.99 or if you've got a physical job, 00:53:17.03\00:53:18.66 you've got a real blessing there. 00:53:18.69\00:53:20.26 Physical exercise of an adequate amount during the day 00:53:20.30\00:53:24.63 when you come up to bedtime, 00:53:24.67\00:53:26.43 the muscles and the other parts of the body are tired enough 00:53:26.47\00:53:30.04 that they're going to say, 00:53:30.07\00:53:31.41 "Okay, we're ready to shift into sleep... " 00:53:31.44\00:53:34.71 and the brain and synchrony with that says, 00:53:34.74\00:53:38.31 "Yeah, let's go to sleep now... " 00:53:38.35\00:53:39.68 and the various parts all come together 00:53:39.71\00:53:42.05 if you really good sound sleep, if you've had enough exercise. 00:53:42.08\00:53:45.69 Going to bed on an empty stomach is important. 00:53:45.72\00:53:49.22 If you're just going to have a large meal 00:53:49.26\00:53:53.06 and you haven't digested that meal yet, 00:53:53.09\00:53:56.80 well, the brain is sending all these messages down 00:53:56.87\00:53:59.80 through various ganglions 00:53:59.83\00:54:01.17 and now, we've got to work on the stomach... 00:54:01.20\00:54:04.11 put out the digestive... 00:54:04.14\00:54:05.47 you're doing all of this work down here 00:54:05.51\00:54:07.51 and it's like, "Hey, the brain doesn't... 00:54:07.54\00:54:09.64 the brain controls all of that. " 00:54:09.68\00:54:11.01 You know, you don't know... 00:54:11.05\00:54:12.38 decide when to contract your stomach, the brain decides that. 00:54:12.41\00:54:14.85 You don't decide when to move it down the intestines, 00:54:14.88\00:54:17.52 you don't decide when to go into the colon, 00:54:17.55\00:54:19.45 you know, you don't decide all these things, 00:54:19.49\00:54:21.32 they're all done automatically by your brain 00:54:21.36\00:54:23.12 but right now, we want the brain to go in a sleep cycle. 00:54:23.16\00:54:28.36 Well, the sleep cycle is going to be mixed up 00:54:28.40\00:54:30.90 because the stomach's telling, "Hey, we've got... 00:54:30.97\00:54:33.37 there's lot of food, we've got to do something about it here 00:54:33.40\00:54:35.10 and it's sending messages up 00:54:35.14\00:54:36.47 and so, there's this conflict of the digestive system 00:54:36.50\00:54:39.57 telling the brain, "Hey, we can't go to sleep, 00:54:39.61\00:54:40.98 we've got to keep... you've got to keep processing this... " 00:54:41.01\00:54:43.18 and the brain says, "Okay, well, let's send this up there" 00:54:43.21\00:54:45.35 the sleep cycle down there 00:54:45.38\00:54:48.22 is not, you know, going to be as good 00:54:48.28\00:54:50.39 in that condition there. 00:54:50.42\00:54:51.92 Cool, dark, lack of things working into it to interrupt it. 00:54:51.95\00:55:00.10 If you'd like to read some more about this, 00:55:00.13\00:55:04.37 there's an excellent book... came out about a year ago, 00:55:04.40\00:55:08.00 "Why We Sleep" 00:55:08.04\00:55:09.44 Matthew Walker is a PhD who specializes in sleep studies. 00:55:09.47\00:55:13.41 He is one of the Scientists that has discovered 00:55:13.48\00:55:16.91 much of the recent information about what's happening 00:55:16.95\00:55:20.48 during the time we sleep 00:55:20.52\00:55:21.85 I've been through a lot of his work 00:55:21.88\00:55:23.79 but he's put together a very readable book here 00:55:23.82\00:55:26.15 that was really... yeah... 00:55:26.19\00:55:28.19 if you're interested to know more about sleep, 00:55:28.22\00:55:30.06 I would highly recommend that as a... something valuable there. 00:55:30.09\00:55:35.13 Pause... 00:55:35.16\00:55:39.40 A final thought here, 00:55:39.43\00:55:42.60 delicate nerves of the brain 00:55:42.64\00:55:44.27 are the only channel through which God communicates with man. 00:55:44.31\00:55:49.18 You think about that for a minute... 00:55:49.21\00:55:53.11 we want all those neurons in the brain 00:55:53.15\00:55:56.99 to be doing exactly what God designed them to do 00:55:57.02\00:56:02.52 and one of those things is going to be able to commune with God 00:56:02.56\00:56:07.33 and you need the frontal lobe... all of the other lobes... 00:56:07.36\00:56:12.33 all of these parts synapsing. 00:56:12.37\00:56:14.60 You need the neurons clean 00:56:14.64\00:56:16.81 so they can respond appropriately. 00:56:16.84\00:56:18.61 Everything about sleep 00:56:18.64\00:56:21.08 is essential for a normal functioning brain. 00:56:21.11\00:56:24.28 The sleep-deprived brain is going to make it more difficult. 00:56:24.31\00:56:28.42 A Caffeinated brain is going to find it really difficult. 00:56:28.45\00:56:32.52 An alcohol brain that's intoxicated... 00:56:32.55\00:56:36.26 a brain with various mind-altering drugs, you know, 00:56:36.29\00:56:40.36 sleeping pill... all of these things that come on there, 00:56:40.40\00:56:43.47 they alter the functioning of the neurons in the brain 00:56:43.50\00:56:46.50 are disturbing that delicate balance in there. 00:56:46.53\00:56:50.44 Remember, there's different little neurotransmitters 00:56:50.47\00:56:52.57 all over the place connecting all of the parts of the brain. 00:56:52.61\00:56:55.24 We want our brains to be as clear and finely tuned 00:56:55.28\00:56:59.95 and as ready as they can be to be sensitive 00:56:59.98\00:57:04.25 to the voice of God speaking to us. 00:57:04.29\00:57:06.79 We want to have a clear mind to pray... to think... 00:57:06.82\00:57:12.99 to put our thoughts together. 00:57:13.03\00:57:14.60 Well, we need to have stored the important stuff, 00:57:14.63\00:57:18.27 cleaned out the unimportant stuff. 00:57:18.30\00:57:19.97 We want the creative parts of the mind working well 00:57:20.00\00:57:22.47 and now, God's got a temple that He can come and dwell in. 00:57:22.50\00:57:27.34 Pause... 00:57:27.38\00:57:30.08 The door to the tabernacle is inside you. 00:57:30.15\00:57:32.81 God's placed it there... that's the temple He dwells in, 00:57:32.85\00:57:37.29 it's in this brain with these neurons and sleep. 00:57:37.32\00:57:41.22 My prayer is that you will have sleep... a sound sleep 00:57:41.26\00:57:44.66 and a clear mind 00:57:44.69\00:57:46.03 and God will bless you by communicating with you. 00:57:46.06\00:57:49.63