Sleep expert Matthew Walker breaks down the many effects of sleep deprivation on your brain and body.
Following is the transcript of the video:
Matthew Walker: My name is Matthew Walker, I am a professor of neuroscience and psychology at the University of California, Berkeley, and I am the author of the book “Why We Sleep.”
We certainly know that a lack of sleep will actually prevent your brain from being able to initially make new memories, so it’s almost as though without sleep the memory inbox of the brain shuts down and you can’t commit new experiences to memory. So those new incoming informational emails are just bounced, and you end up feeling as though you’re amnesiac. You can’t essentially make and create those new memories.
We also know that a lack of sleep will lead to an increased development of a toxic protein in the brain that is called beta amyloid and that is associated with Alzheimer’s disease because it is during deep sleep at night when a sewage system within the brain actually kicks in to high gear and it starts to wash away this toxic protein, beta amyloid. So if you’re not getting enough sleep each and every night, more of that Alzheimer’s-related protein will build up. The more protein that builds up, the greater your risk of going on to develop dementia in later life.
What are the effects of sleep deprivation on the body? Well, there are many different effects. Firstly, we know that sleep deprivation affects the reproductive system. We know that men who are sleeping just five to six hours a night have a level of testosterone which is that of someone ten years their senior. So a lack of sleep will age you by almost a decade in terms of that aspect of virility and wellness.
We also know that a lack of sleep impacts your immune system. So after just one night of four to five hours of sleep, there is a 70% reduction in critical anticancer-fighting immune cells called natural killer cells. And that’s the reason that we know that short sleep duration predicts your risk for developing numerous forms of cancer. And that list currently includes cancer of the bowel, cancer of the prostate, as well as cancer of the breast. In fact, the link between a lack of sleep and cancer is now so strong that recently the World Health Organization decided to classify any form of nighttime shift work as a probable carcinogen. So in other words, jobs that may induce cancer because of a disruption of your sleep rate rhythms.
We also know that a lack of sleep impacts your cardiovascular system because it is during deep sleep at night that you receive this most wonderful form of effectively blood pressure medication. Your heart rate drops, your blood pressure goes down. If you’re not getting sufficient sleep, you’re not getting that reboot of the cardiovascular system, so your blood pressure rises. You have, if you’re getting six hours of sleep or less, a 200% increased risk of having a fatal heart attack or stroke in your lifetime.
There is a global experiment that is performed on 1.6 billion people twice a year and it’s called daylight saving time. And we know that in the spring, when we lose one hour of sleep, we see a subsequent 24% increase in heart attacks the following day.
Another question, perhaps, is what is the recycle rate of a human being? How long can we actually last without sleep before we start to see declines in your brain function or even impairments within your body? And the answer seems to be about 16 hours of wakefulness. Once you get past 16 hours of being awake, that’s when we start to see mental deterioration and physiological deterioration in the body. We know that after you’ve been awake for 19 or 20 hours, your mental capacity is so impaired that you would be as deficient as someone who was legally drunk behind the wheel of a car. So if you were to ask me what is the recycle rate of a human being, it does seem to be about 16 hours and we need about eight hours of sleep to repair the damage of wakefulness. Wakefulness essentially is low-level brain damage.
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#Sleep #SleepDeprivation #TechInsider
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What Happens To Your Body And Brain If You Don’t Get Sleep | The Human Body
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Oh dear…
I don't sleep in home I sleep in college
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Me outside playing its really cold me wake up me great im sick AND IT GOT WORSE AND I COULDNT SLEEP ALL NIGHT
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Night shift here i havent sleep normally in 8 year.
I dont sleep at all
Im watching this at 6am
Oh my god l should go to sleep
Night shift squad wya
I've been sleeping for 4-3 hours FOR 5 MONTHS STRAIGHT 🙁 even if I go to bed early my eyes still don't feel tired although I really want to sleep
Its 12 in the afternoon… I haven't slept yet… I just keep thinking
what if we sleep 16 hours and are awake 16 hours
Why am I even watching this at 3 am
Its 7am and I haven’t slept yet
Watching this whilst not sleeping
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As Paulie said in the Sopranos…man needs his seven hours. Keeps your mind sharp!
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Thanks one direction…
I haven’t been going to sleep at night and my head hurts I’m going to start going to sleep
Sleep is for the week.
I havent had more then 6hrs of sleep a night. in the last 15years and im doing just fine
i was able to get rid of herpes virus with herbal medication i got from Dr Ayomede, living with herpes virus made me realize that herbal medication are very powerful and is of great use
Day 1 of not sleeping till I pass the world record
11 days 264 hours
i did not mean as in the comment;-;
In the 24 hours youll be fine but if u reach the 24 hours mark not sleeping u will feel dizzy and u might not remmeber much in the 3 days ur eyes will start to be red and u will completely lose ur memories and u will have as virus then all ur nightmares will come to life if u dont believe me:check on tt:Bobby4more
Not my channel ofc~ofcourse
:Me thinking nobady will believe me…
In the 24 hours youll be fine but if u reach the 24 hours mark not sleeping u will feel dizzy and u might not remmeber much in the 3 days ur eyes will start to be red and u will completely lose ur memories and u will have as virus then all ur nightmares will come to life if u dont believe me:check on tt:Bobby4more
Not my channel ofc~ofcourse
:Me thinking nobady will believe me…
i diddnt sleep for 5 hours and i waited days to day so…
I can’t even get hardly 2 hours last night it’s now 5 o clock
school needs to start school @10. (mine starts @8 & wake u @630) i never get enough sleep & sleep in class bc of it
: "ME WATCHING AT 6 AM WITHOUT SLEEPING : 👁️👄👁️"
This video will get you to sleep in 10 mins. Try it if you dont believe:
https://youtu.be/_IVj87dGF7w
Me staying up all night playing pubg thinking I'm gonna be a pro🤡 and ending up not memorizing anything at all. (Ik about 90% of u won't get this but it iz what it iz).
Now im gonna sleep till 2040
I have Bipolar disorder and when I get manic I cant sleep. I went 4 days straight with no sleep once. I wouldn't wish it on my worst enemy. I felt as if the world was moving in slow motion and people were talking faster than an a jet. Every sound made my ears want to bleed. I was paranoid. I felt as if I was dying. Then on day 4 when I got home I sat down to watch tv and I passed out. I slept for the whole day. My family got mad I didn't go to school the next day. But I honestly didn't wake up until 4pm the next day. I struggled making sentences and everything for about 3 years after those 4 days.
"sleeping is important"
me watching this at 3am
Guess I’ll die.
Whos up rn at 2am LOLL
Allright very nice to know but it's 6am and the sky is blue again and I still can't sleep so how de f am I supposed to fall asleep
I know what I’ll do, block this video in my mom’s cellphone
I always wake up with a headache the next day if i sleep late…..
I’m scared because it’s 3:00 am
When the school started after mco I only slept for 30 mins for three days straight 😂😂
Here after I pulled four all-nighters this week 🌚
Just pulled an all-nighter by accident shit
Me watching this is at 4:37 AM
Been up tweaking for 4 days. He's just a hater