Why is Sleep Important? Part Deux
When we left part one, I had just explained how lack of sleep can make people fat, and was about to explain how it can also make people ugly. First, just a quick review of the cascade that makes you fat. When you don’t sleep, there is an increase in the hormone ghrelin, which causes hunger, and makes you eat everything in sight at 3am. At the same time, levels of leptin, the hormone that makes you feel full, go way down. So you feel like you’re starving, but you can’t feel full, so you eat and eat and eat. Then, the stress hormone cortisol enters the scene since you’re not sleeping. Cortisol is a bully that pushes insulin around, so insulin picks up his toys and goes home, and this means insulin isn’t around to process all the sugary food you just ate courtesy of ghrelin. With all those sugars floating around, they eventually find their way to fat. But that’s not the end. Cortisol is such a bully that when insulin leaves, it starts picking on growth hormone. Fed up, growth hormone is suppressed, and that’s a bummer, because growth hormone is what repairs, restores, and rejuvenates the body. It builds protein, heals bone, and heals cartilage and connective tissue, as well as parts of the body that are very important to the beauty industry. And at long last, here is where I tell you how lack of sleep can make you ugly.
They did a study centered on determining sleeplessness through imagery. It showed that it took people just four seconds max to look at images and determine which people had not slept. The bottom line is that not sleeping makes you look older. Your skin loses elasticity, making it more wrinkled. Why? Well, remember the 3am date with the Frigidaire? How the stress hormone cortisol crashed the party, bullying insulin and human growth hormone and causing their suppression? Well, without human growth hormone to repair and replenish the cartilage and connective tissue, the skin loses its elastic properties. Without elasticity, the skin wrinkles badly. Also, many restorative and metabolic pathways take place at night. Certain genes present on our chromosomes have specialized jobs. They are involved in creating proteins to restore the skin, connective tissues, cartilage, musculature, and basically to repair the body and fight the aging of the body. The genes that do these jobs turn on at night while sleeping. If you’re not sleeping, those genes can’t do their job normally. All in all, it makes you look old and ugly before your time: your eyes get puffy and bloodshot, your face gets droopy, you have decreased muscle tone and more pronounced wrinkling, and your posture changes, becoming more stooped over. When shown subjects with good sleep patterns, public perception studies show that those subjects are considered more likeable, sexier, more successful, more articulate, healthier, and happier. So now we know, if you don’t sleep, you get fat. If you don’t sleep, you look ugly. And that’s not so good.
Next, let’s talk toxins. In order to be awake with a functioning, metabolizing brain, our body produces waste products, basically like pollution in the brain. These byproducts of metabolism are inflammatory compounds called beta-amyloid and tau proteins, and these are deposited in the brain. These are no bueno; it’s very important that we get rid of these compounds. Why? Both of these proteins are causative factors in Alzheimer’s disease and dementia, and other types of dementia as well. The body has a system, the lymphatic system, and it’s like a garbage disposal system. It coats the entire brain in cerebrospinal fluid and it pushes all the toxins, inflammatory products, beta-amyloid proteins, and tau proteins out and away from the brain, and it takes them away where the liver and the kidney metabolize them and they are ultimately excreted in urine, feces, and sweat. That lymphatic system is critical, but like any system, it can be overloaded. If you don’t sleep, your risk of dementia goes way up, especially if you are chronically sleep deprived. A lot of other things go bad too, but this is a big bad one. You must sleep in order to clear the body of inflammatory products and toxins, and to keep the brain healthy. It is nothing short of critical.
I’ve given you a lot of reasons to give yourself seven to nine hours of sleep each night. During sleep, our bodies undergo transformative changes. Our blood pressure drops, our heart rate drops, our respirations drop. It sets up the conditions that allow us to clear our body of toxins, to heal, to restore, and to grow. But there are plenty more interesting studies related to sleep deprivation that will make you want to give yourself those seven to nine hours. During spring daylight savings time when we lose an hour of an hour of sleep, heart attacks increase by 24 percent. They infer that not sleeping increases the risk of heart attack and stroke, because of hardening of the arteries. If you don’t sleep, arterial repairs aren’t getting done, so there is an increase in blood pressure and heart rate. Couple that with increased levels of uncleared inflammatory products and toxins oozing around the brain and body, and it creates all sorts of problems if it is chronic.
There are also psychiatric reasons that we need to sleep. Essentially, every psychiatric illness either causes sleep disruption or is exacerbated by sleep disruption. Most schizophrenics have an abnormal circadian rhythm that causes them to sleep during the day rather than the night. Sleep deprivation also causes some issues with psychiatric components. If you don’t get enough sleep, you have less empathy, you cannot recognize the pain and suffering of others. You can also lose the ability to understand facial expressions of pain, suffering, happiness, sadness. You can’t effectively ‘read’ someone’s expression or demeanor. Also, impulsivity increases when you do not sleep, and you’re prone to dangerous behaviors. There is no question that depression, anxiety, psychosis, panic disorder, and a host of other psychiatric problems are dramatically increased when people’s sleep wake cycle is impaired. You also can’t effectively concentrate if you do not sleep. Remember our student from part one, Randy Gardner. He deprived himself of sleep and was nearly a basket case by the third day. Speaking of school, I think that kids should not be starting as early as they do. I have seen that they do not regularly get the proper amount of sleep. They should start school at 9am, not before. As it is now, we make these kids get up so early, they are basically in a state where they cannot concentrate because they are sleep deprived, and that’s a huge problem, because this mimics attention deficit disorder. It’s very likely that many kidsdiagnosed with attention deficit disorder and even medicated for it really were just sleep deprived. Also, many studies on learning and sleep have been done. One was set up to study how well students learned a second language. They taught the same cirriculum to all of them, and the results showed that students with adequate sleep had a higher retention rate than sleep deprived students. From that, and many other studies, researchers have confirmed that memory is impaired by not sleeping. They did a similar study focusing on creativity and showed a three-fold decrease in creativity when sleep deprived. We know that the prefrontal cortex of the brain, which does all the decision making, is impaired by sleep deprivation. Scientists believe that the Challenger explosion and the Chernobyl disaster are both a direct consequence of a lack of sleep. There was a pilot program in some county in Minnesota that started school 90 minutes later in the morning, and the number of car crashes in the driving children under age 20 went down, as did the suicide rate.
There is some interesting stuff about the immune system as well. They found that natural killer cells go down in people that don’t sleep. What does all that mean? We all have these primordial cancer cells floating around in us, which are basically little tiny cellular precursors to cancer. But we also have specific immune cells called natural killer cells, and they circulate around and their job is to kill those primordial cancer cells. So, this study showed that if we don’t sleep, the number of those natural killer cells goes down, leaving more primordial cancer cells. This supports all of the studies that have shown that chronically sleep deprived people absolutely do have higher instances of breast, prostate, and colon cancer. Recently, the World Health Organization even went so far as to recognize chronic sleep deprivation as a carcinogen. That’s saying a lot, people. Other immune studies centering on immunizations, flu shots, were completed tolook at antibody response. One group of people were sleep deprived, and the other group was well slept. All were given the same flu shot at the same time. The results showed that the people who were sleep deprived had just half the antibody response of those who were well slept. That’s a dramatic finding. So when you’re chronically sleep deprived, cancer incidence goes up and the ability to mount an immune response goes down. That’s like the perfect storm. This is important, because it has a huge impact on your life, especially now with the coronavirus. If you get fewer than five or six hours a night, your immune system is approximately 40 percent less competent than the immune system of someone who is well swept. Also dramatic, people.
Just a quick review… unless you are among the five percent with a genetic mutation that allows your brain and body to work properly on little sleep, you need to sleep seven to nine hours each night to have optimal health. If you chronically and consistently do not get enough sleep, we have learned that you will overeat and be overweight, you will not be able to learn as well, your concentration and memory will nose dive, you will be less intelligent, and cosmetically, you won’t be very appealing. Basically, fat, dumb, and ugly. That doesn’t sound so great. So you really need to sleep.
Now that you know why you need adequate sleep, here are some tips on how to get it.
– Get into a routine. Go to bed at the same time every day, and try and get up at the same time every day.
– Create the proper environment. Sleep in a quiet place to avoid interference. Also sleep in a dark room, as any light throws off your natural melatonin that tells the body it is time to sleep. A cold room is best for sleep, cool enough to require a comforter. It’s very name tells you why: the weight of a comforter is…well, comforting. You can also buy a weighted blanket; these are great for kids too.
– Situate yourself. Sleep position is important. Many publications say that the best sleep position is on your back with your legs elevated to maintain appropriate spinal cord posture. If you’re unable to sleep that way, then whatever position feels best to you and doesn’t cause pain in the morning is the correct one.
– Blue light is bad. Blue light is emitted from screens on iPads, computers, kindles, etc. You must not have blue light exposure for a minimum of one hour before sleep, so shut it all down at least an hour before you go to bed. This is really important, as the bluelight is very disruptive to the melatonin cycle; it actually tells your body to get up. Speaking of light, there’s nothing as disruptive as bright light in the middle of the night. So if you must get up to use the bathroom in the night, don’t turn on a bright light. Get a dimmer switch and leave it set very very low and only use that.
– Wind down. Consider incorporating a period of time to wind down into your pre-sleep routine. Reading from a book by low light is good, but it must be the old school kind written on paper, not on Kindle or in an e-book. Taking a hot bath is good too. It causes the small capillaries at the skin’s surface to open up, getting blood to the skin surface to radiate heat and cool the body.
– Don’t drink a lot of fluids before sleep, because as your body goes into sleep, if it senses it has to go the bathroom, it wakes the brain, and then you wake up. Your body does have a mechanism for this; the posterior pituitary releases an anti-diuretic hormone to prevent the creation of urine during sleep, but you can override that by drinking too much fluid before sleep. So avoid that.
– Don’t eat big meals before sleep. This also disrupts sleep. A little snack is okay, because you don’t want to go to bed hungry, as that is disruptive as well. Ideally, you really need to have your dinner four to five hours before sleep. Also, along those same lines, don’t have any sugar before bedtime. Sugar tends to inundate the system and then wake you as it’s metabolized, so no sugar before bedtime.
– Alcohol, caffeine, and nicotine. No, no, and no. All are disruptive to sleep architecture. Alcohol: for every drink, you need four hours before going to sleep to not affect sleep. Caffeine: this has a long half life, so you need at least six hours per caffeinated beverage before going to sleep. Nicotine: ideally, you should have four hours before sleeping. This is a tough one, because people who smoke are commonly awakened by withdrawal from nicotine. So if you’re a smoker and you have trouble sleeping, try to quit smoking. I guarantee you’ll sleep and feel better in a short period of time.
– Vitamins and supplements. Magnesium is a calming hormone, so it helps you sleep. Calcium is used to manufacture tryptophan, an amino acid which causes drowsiness, so that helps promote sleep. Vitamin D3 and B vitamins help metabolize calcium, so those are good. You need iron, vitamin E, and melatonin. Also, valerian root is helpful. L-theanine is good, it is another amino acid that has a calming effect.
So now we’ve discussed the risks and repercussions of not sleeping and some tips tohelp you sleep better. If you find you still can’t sleep, consider seeing a physician, especially if you can see that it is impacting your life in a negative fashion.
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