結果 : is it okay to sleep during the day
2:18

Are naps actually good for us? | Sleeping with Science

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0:41

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3:57

How To Take The Ideal Nap And Avoid Bad Sleep

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How much sleep do you really need? | Sleeping with Science, a TED series

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2:41

How To Survive A Day On No Sleep

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8:06

How fasting can impact sleep | Peter Attia, M.D. & Matthew Walker, Ph.D.

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3:01

How to Sleep Less and Get More Out of Your Day- Thomas DeLauer

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1:01

Why you're still tired after getting 8 hours of sleep

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148,707 回視聴 - 4 年前

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0:42

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563 回視聴 - 2 日前
6:38

The brain benefits of deep sleep -- and how to get more of it | Dan Gartenberg

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5:51

How lack of sleep affects health and tips for a good night's rest

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1:28

Pulling an All-Nighter vs. 2 Hours of Sleep: Which is Worse? – Healthy Living and Diet Tips–SELF

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1:19

How many hours of sleep do you need?

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1:51

I Can't Sleep for More Than 4 Hours a Night - Why? | This Morning

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2:45

What happens when we sleep?

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1:54

Best and Worst Times to Sleep

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127,458 回視聴 - 14 年前
6:20

Why Humans Are Supposed to Sleep in Two 4-Hour Phases

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6:25

Can You Sleep Too Much? (The Answer Might Surprise You)

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1:58

Why 4 Hours Of Sleep Is Terrible For You — Even If You Don't Feel Tired

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450,915 回視聴 - 7 年前
3:58

What Happens to Your Body on Little Sleep?

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