結果 : why is 9 hours of sleep not enough
0:41

How many hours of sleep a night do I need?

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2:55

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6:02

What Would Happen If You Got 9 hours of Sleep for 7 Days

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3:24

How Much Sleep Do You Actually Need?

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6:25

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6:38

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

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12:54

What Would Happen if You Only Got 5 Hours of Sleep Per Night - NOT GOOD!

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1:19

How many hours of sleep do you need?

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4:10

What Happens To Your Body When You Sleep 4-6 Hours vs 7-10 Hours

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1:01

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

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3:58

What Happens to Your Body on Little Sleep?

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5:51

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

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0:51

4 Hours of Sleep Is Enough

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11:05

Why You're Always Tired - 7 Myths Ruining Your Sleep

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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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1:58

Why Do I Feel So Sleepy Despite Having Enough Sleep? – Dr. Berg

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66,674 回視聴 - 7 年前
10:30

How to Sleep Less & Sleep Better

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10:33

10 Sleep Myths Finally Debunked

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