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Gayatri Devi, M.D.

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How Sleep Improves Memory And Cultivates Genius

Posted: 01/06/10 09:21 AM ET

Do you want to do better in your classes and come up with clever solutions to common problems? Would you like to be calmer when someone crosses the line? Can you do this in the privacy of your own home? For free? Yes, you can. After tinkering with our brains for millions of years, nature has developed just such a process.

During this mysterious process, billions of your brain cells oscillate together in rhythms, some slow and some fast. Multiple layers of the brain obey the beat of a deep-seated conductor, the whole working to achieve a smarter, more serene you. This magical orchestration allows different neural circuits to reset themselves, lay down new, stronger cables, to splice and prune neuronal networks, and lay pathways for speedy thought. What is this mysterious and miraculous process called? Sleep. Natural, non-drug enhanced, luxuriously languorous sleep.

Do you know that birds rehearse their songs as they sleep? Nightly, little finches silently replay bird songs over and over again -- polishing their daily warbles until it is deemed up to snuff! So too, do humans. Violinists practice the violin as they sleep and dancers glide on ghostly feet. Surfer dudes ride the big wave out safely in sleep, infinitesimally moving a muscle here and there to make the next day's surfing better. Jack Nicklaus went through a rough patch of golf until he dreamt of holding the club a little differently and voila! Problem solved. And some of us will continue to play Tetris or troll Facebook in our sleep, if that is mostly what we do when awake.

How do scientists know this? Because they have measured activity in different nerve cells while our finch is singing and while she's sleeping. They wake up student volunteers who spent all day playing Tetris just as they start dreaming. Et cetera. You get the point. So we have it on good evidence that sleep is important for laying down the days' memories, for forming habits and for learning in general.

The optimal way for students to pass exams would be to study daily and then sleep well. If you are the cramming sort, go ahead, but make sure to sandwich a nice, long sleep session between the cram session and the examination. This type of sleep helps consolidate all those bytes of information and occurs best with natural sleep. What this means, kids, is that sleep induced by hypnotics and prescription medications does not replicate the architecture of natural sleep, which is the optimal state for memory consolidation.

Want to be a creative thinker? First, work on the problem and immerse yourself in it. Then, fall asleep. Freidrich Kekule inadvertently and famously discovered this. Kekule and his 19th century chemists wrestled with the structure of benzene until Kekule fell asleep to dream of a snake eating its own tail. He then realized that the benzene molecule was ring shaped. If sleep helps straight-laced, inorganic chemists think laterally, think what it can do for Madison Avenue copy writers!

It helps, of course, to be passionate about something. If you are a perfectly nice sort of fellow and can really sleep well, sleep may make you a mellow Rip Van Winkle sort in the Hudson Valley but not a Yo-Yo Ma in Carnegie Hall. Even so, sleep, to paraphrase the US Army, helps all of us be the best we can be.

How do you get to Carnegie Hall? The right answer is with practice and sleep, practice and sleep, practice and sleep.

Why then, this modern aversion to sleep? Why do people equate sleep with sloth? Is a good eight to nine hours of sleep a night a waste of time or is it necessary, essential even, for us to function more efficiently? Winston Churchill, no shirker by anyone's standards, weighed in with his opinion, stating "Don't think you will be doing less work because you sleep ... that's a foolish notion ... you will be able to accomplish more." Even Thomas Edison, who publicly disdained long periods of sleep and was big on short daytime naps, was, to surmise from his diary jottings, a restful night-time sleep enthusiast.

Sadly, for adolescents and young adults, there is a cultural stigma against those who turn in at eight or nine PM. Aside from the pressure of school work, socializing often begins at this time and those who opt to sleep in may lose out. Confronted with this dilemma, most students sacrifice sleep, unknowingly exacerbating the situation. Furthermore, adolescents may be more susceptible to the mood altering effects of chronic sleep deprivation. Those who get less than the required nine hours of sleep, yes, nine hours, are more prone to depression and suicidal thoughts. Interestingly (and reassuringly), surveys reveal that adolescents generally conform to curfew times set by their parents. Good sleep habits may therefore be molded by parents, helping their children reap a lifetime of benefits.

I am here to champion the cause of sleep, a maligned yet crucial restorative and regenerative brain function. As an avowed sleepaholic with eight to 10 hours of sleep under my belt most days, I can personally attest that sleep has helped me become more proficient and mentally resourceful. I recommend it highly. Good night and sleep tight!

 

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Do you want to do better in your classes and come up with clever solutions to common problems? Would you like to be calmer when someone crosses the line? Can you do this in the privacy of your own hom...
Do you want to do better in your classes and come up with clever solutions to common problems? Would you like to be calmer when someone crosses the line? Can you do this in the privacy of your own hom...
 
 
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HUFFPOST SUPER USER
RMankovitz
Researcher, inventor, entrepreneur, author
02:09 PM on 01/09/2010
The following suggestions are taken from my book "The Wellness Project," which includes supporting references.

Our ancestors synchronized their sleep habits to natural light. In particular, the release of melatonin by the pineal gland is stimulated by darkness, and melatonin can contribute to normal sleep patterns. Many of us stay awake in a bright environment until bedtime, not giving the gland much time to adjust to darkness and begin melatonin production. Recent studies have shown that it is the blue portion of the visible light spectrum that shuts off melatonin production.

Enterprising companies have developed blue-light blocking eyeglasses and light bulbs that can be used indoors for, say, three hours prior to bedtime to acclimate the pineal gland to darkness. The other portions of the light spectrum do not appear to suppress this hormone production.

Imagine a lifestyle habit that increases alertness, boosts creativity, reduces stress, improves perception, stamina, motor skills, and accuracy, helps you make better decisions, keeps you looking younger, reduces the risk of heart attack, elevates your mood, and strengthens memory. The answer is a daily nap. Research studies continue to show physiological benefits from naps, and I try to nod off for 15 to 30 minutes in the early afternoon. Dr. Sara Mednick has researched and written extensively on the subject.

When considering a magnesium supplement, think magnesium taurate. Taurine actually exhibits some of the same relaxation properties as magnesium, and they complement each other in the body.

Roy Mankovitz, Director
http://www.MontecitoWellness.com
06:24 PM on 01/07/2010
This is so true! Sleep is so important but many people do not realize this. But are the amounts of sleep needed per age group different?
01:47 AM on 01/07/2010
I took William Dement's ( http://en.wikipedia.org/wiki/William_C._Dement ) sleep and dreams class at Stanford and he told us the teen's brain changes and cannot fall asleep until late at night and they need to sleep later to get all the sleep they need. He is a champion of schools starting later. I cannot see a teen falling asleep at 9PM based on that information. I have parented three teens and my experience seems to back up what he taught us. Of course I took his class many years ago, but I don't think this information has changed.

I am a big champion of sleep also but have chronic insomnia. After the government's disinformation on GHB, which I had an Rx for, I can no longer fall asleep before 1am. The quality of my life deteriorated when I could no longer take it. GHB normalizes sleep architecture and allows one to be in synch with the rest of the world. It has the side effect of having one wake up feeling refreshed, happy, and energetic. It was about to destroy the pharmaceutical industry and they made up deaths and attributed them to GHB. GHB is a naturally occurring substance in every living thing so of course it was found in an autopsy.

It has been resurrected as the drug XYREM and what I bought for 50.00 is now 700.00. Used for narcoleptics and fibromyalgia patients. I hear they are sleeping better. Not me.
03:05 PM on 01/07/2010
may i suggest hylands 'insomnia' formula? it's helped me, and several people i know. it's OTC and there's a website for the company.
01:26 AM on 01/07/2010
Sleep cultivates genius? Can I sleep my way into Mensa?
05:00 AM on 01/08/2010
It's more likely that sleep just allows you to reach your fullest potential, not that you can magically make yourself Einstein just by sleeping all day.
HUFFPOST SUPER USER
realitytrumpsbull
Two 'alves of coconut!
11:01 PM on 01/06/2010
I can usually function pretty well by getting 5- 6 hours a night on the charger, but much like the sentence applies, when I do that for long enough, I start to feel kind of like a robot. Some people have done sleep experiments, working on staying awake for 2,3,4 days at a time, but that's a good way to permanently mess with your sleep schedule, wreck your car, step off the curb in front of a bus, stuff like that, so you probably don't want to do that to yourself unless you absolutely have to, to survive. To sleep, perchance to dream, and knit the raveled sleeve of care, and if you don't take care to consistently get enough sleep, it can foreshorten your life. The body needs sleep time to do repair work, not just on your neurons, but also on your ten-dons, joints, ligaments, and the rest of the body. Is it really worth losing sleep over? Probably not.
07:40 PM on 01/06/2010
For whatever reason I tend to solve some problems in my sleep that I cannot solve while working on them. I often have dreams about a solution to a problem and I remeber it clearly when I wake up. This happens every once in a while, and I treasure it.
06:09 PM on 01/06/2010
Just my two cents, but, one might consider AFFIRMATIONS to help guide you off to sleep, along with guide you to genious, if that is your desire. My children (now teens) go to bed with a beautiful and peaceful single piano impromptu in D flat Major that is filled with positive statements (or affirmations)
that are specifically disigned around their individual goals.
Gayle ~ www.AffirmationsForYourSpecialNeedsChild.com
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HUFFPOST SUPER USER
kathismom
@saracsit , Boulderite
04:31 PM on 01/06/2010
Sleeeep, love it.
02:20 PM on 01/06/2010
As a college student, I am surrounded by people who avoid sleep in order to get work done. I hope that students read this article and realize that they will do better on midterms, problem sets, and essays with a good night's sleep.

Also....

Although I do hate to sacrifice my social life, maybe coming home at 4 AM both weekend nights, is not the best idea.
05:02 AM on 01/08/2010
I know that I always did better in college when I slept all the time(I suffer from pretty bad bouts of depression) than when I tried doing the "stay up and cram" routine most of my friends attempted.
02:17 PM on 01/06/2010
As a college student, I am always around people who avoid sleeping in order to get stuff done. ( I am also guilty of this) I hope that more students read this and realize that they will do better on midterms, essays, and problem sets with more sleep.

Although I do hate to sacrifice going out time, maybe coming home at 4 AM on both weekend nights is not the best idea.
01:53 PM on 01/06/2010
My two pre-teens always grumble to me, as I march them up the stairs to go to bed each night, that all their classmates get to stay up way later than them. I knew I was right not to cave, and I will be showing them this article to gloat.
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thinkb4uleapII
My micro-bio is no longer empty.
12:31 PM on 01/06/2010
Excellent article! The following are a few follow-up questions from a self-confessed "night owl":

1. Is night sleep more advantageous than sleep during the day?

2. Are night workers (nurses, doctors, etc.) more negatively affected by their work/sleep schedule?

3. Is the time you go to sleep (i.e. before 10 p.m.) of any consequence to getting more refreshing sleep?

Thanks for an entertainingly informative article.
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HUFFPOST BLOGGER
Gayatri Devi, M.D.
07:43 PM on 01/06/2010
Glad you enjoyed the blog, night-owl.
Night time sleep is better than sleeping during the day, which is why shift-workers often suffer more from the ill effects of sleep disorders. As long as you are able to get your 8-10 hours of sleep, it generally does not greatly matter if you fell asleep at 9 PM or at 11 PM.
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11:37 AM on 01/06/2010
There are millions of us who have trouble sleeping, much more than those who don't
want to sleep that much. Only some young people who have too much to do don't want to go
to sleep. To be able to sleep any time one wants to is a blessing. High energy drinks and stimulants
are for the young while sleeping aids are for the older generations. Insomnia is a major health
problem while not sleeping by choice is probably benign.