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The brain uses a quarter of the body’s entire energy supply, yet only accounts for about two percent of the body’s mass. So how does this unique organ receive …


31 thoughts on “One more reason to get a good night’s sleep | Jeff Iliff

  1. За 5.$ расскажу как я себе и матери востановил сон природным растительным продуктом. Я теперь всю жизнь буду пить этот сок и не на что его не променяю я за здоровый образ жизни. Врачи своими хомическими снатворными только снимают симптом и все. Здоровье востановить может только природа.

  2. يقول Blinder_ LPS:

    but sleep has bad things like sleep paralyse nightmare we im not dumb i know thats is form my brain but thats negative

  3. يقول JOSEPH KANG:

    anyone watching this 2021?

  4. يقول Omari Msigiti:

    Me at 3 am watching him explain

  5. يقول Sara:

    stay away from aluminum

  6. يقول cynthiaholland13:

    It's beyond amazing how intricately God created us

  7. يقول Chloe Patterson:

    watching this for my gen psychology class…..I haven't slept a good 8 hours for a year now. 🙂

  8. يقول Eben Burger:

    Awesome. Now,. Let's get more sleep!

  9. Im watching this at 5:04 am, wtf.

  10. يقول uluomu:

    Watching this damn well knowing I‘ll only get 4 hours of sleep.

  11. يقول Samuel Iliff:

    That's my dad. He wakes up at 430 to go to work and goes to bed at 11

  12. يقول Hannah Nash:

    ගැඩ්ෆියම් තරුණයා වෙත ආපසු හැරී ගියේය අඳුරු ලේ තටාකයක පිළිබිඹු වන ඇගේ මුහුණ දුටු ඇය වමනය සඳහා පෙලඹුණාය පුරුෂයාගේ සාක්කුවල ඇයට දැනුනි

  13. يقول Mario Velez:

    Your brain just learned about itself

  14. يقول K. B.:

    Umm asking for a friend…. do you have to do one of these in order to get a PhD or something? Other than being on their YouTube channel and having people watch the video, what do these people gain for themselves by giving these talks? Just wondering.

  15. يقول XTSY:

    Few slides, correct deep professional non-stop talking…man you know your job! kudos

  16. يقول Terri Cusson:

    Anatomist found the lymphatic system of the brain in 2018

  17. يقول Liborio Quinto:

    Grazie! Una bella lezione sul sistema di drenaggio delle tossine e delle proteine beta-amiloidi dal cervello, tramite il sistema glinfatico.

  18. يقول yellow lightbulb:

    Hello quarantines. Why were you recommended this? Who knows.

  19. يقول Kevin:


    why is sleep so restorative?

    sleep is an elegant design for the brain’s waste removal
    -the circulatory system provides nutrients to every body cell
    -every cell creates waste; the lymphatic system removes this but there are no lymphatic cells in the brain
    -how does the brain clear its waste?
    -brain has cerebral spinal fluid (CSF) which removes waste
    -CSF moves along brain blood vessels

    this only happens when sleeping
    -when the brain sleeps, brain cells shrink, which makes room for CSF to rush through brain and remove waste!
    -when awake, brain is busy, puts off waste removal process until sleep

    what kinds of waste?
    amyloid beta (AB) — Alzheimer’s is the accumulation of AB, but this doesn’t prove a lack of sleep is the cause

    sleep literally “refreshes” the mind!

    more notes!

  20. يقول Alvin Leow:

    TED has so many smart and good looking scientist… awesome, now I feel stupid and dumb… hahaha

  21. يقول Bruce Hughes:

    Please recommend these earlier in the day, YouTube. Otherwise I end up watching these at midnight.

  22. يقول Slasher Gamer:

    sir if a person is studies in night and sleeps in day time regularly ! will it effect on his body ?

  23. يقول Usha Mishra:

    If u will not sleep properly ur body will refuse to work because it is not fully recovered

  24. يقول Àlan 237:


  25. يقول Brandy Amarion:

    "I recommend this guide:
    So grateful it exists in 2020."

  26. يقول MicroClues:

    absolutely INCREDIBLE video!!! Explains why people have "breakthrough thinking" in their early morning hours (Hour of Power)…avoid brain clog….go to bed earlier it all catches up to us…. all this in 11 minutes… THIS GUY WAS GOOOOOD

  27. I should have known about that video many years ago!!!

  28. يقول jess m:

    videos like this are stupid.. dont you think if i could fall asleep and stay asleep i would be getting a proper 8 hours

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