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Sleep is your superpower

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    Thank you very much.
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    Well, I would like
    to start with testicles.
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    (Laughter)
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    Men who sleep five hours a night
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    have significantly smaller testicles
    than those who sleep seven hours or more.
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    (Laughter)
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    In addition, men who routinely sleep
    just four to five hours a night
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    will have a level of testosterone
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    which is that of someone
    10 years their senior.
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    So a lack of sleep
    will age a man by a decade
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    in terms of that
    critical aspect of wellness.
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    And we see equivalent impairments
    in female reproductive health
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    caused by a lack of sleep.
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    This is the best news
    that I have for you today.
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    (Laughter)
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    From this point, it may only get worse.
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    Not only will I tell you
    about the wonderfully good things
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    that happen when you get sleep
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    but the alarmingly bad things
    that happen when you don't get enough,
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    both for your brain and for your body.
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    Let me start with the brain
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    and the functions of learning and memory,
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    because what we've discovered
    over the past 10 or so years
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    is that you need sleep after learning
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    to essentially hit the save button
    on those new memories
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    so that you don't forget.
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    But recently we discovered
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    that you also need sleep before learning,
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    and now to actually prepare your brain,
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    almost like a dry sponge
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    ready to initially soak up
    new information.
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    And without sleep,
    the memory circuits of the brain
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    essentially become waterlogged,
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    as it were,
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    and you can't absorb new memories.
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    So let me show you the data.
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    Here in this study, we decided
    to test the hypothesis
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    that pulling the all-nighter
    was a good idea.
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    So we took a group of individuals
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    and we assigned them
    to one of two experimental groups:
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    a sleep group,
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    and a sleep deprivation group.
Title:
Sleep is your superpower
Speaker:
Matt Walker
Description:

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Video Language:
English
Team:
closed TED
Project:
TEDTalks
Duration:
19:18
Brian Greene edited English subtitles for Sleep is your superpower May 10, 2019, 4:00 PM
Brian Greene edited English subtitles for Sleep is your superpower May 10, 2019, 2:55 PM
Brian Greene edited English subtitles for Sleep is your superpower May 10, 2019, 2:53 PM
Brian Greene approved English subtitles for Sleep is your superpower May 10, 2019, 12:51 PM
Brian Greene edited English subtitles for Sleep is your superpower May 10, 2019, 12:51 PM
Brian Greene edited English subtitles for Sleep is your superpower May 10, 2019, 12:38 PM
Krystian Aparta accepted English subtitles for Sleep is your superpower May 10, 2019, 11:39 AM
Krystian Aparta edited English subtitles for Sleep is your superpower May 10, 2019, 11:39 AM
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