結果 : why do i want to sleep so long
1:58

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

Dr. Eric Berg DC
69,460 回視聴 - 7 年前
2:55

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

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7:05

Do Depressed People Need More Sleep? How To Do Wake Therapy

Dr. Tracey Marks
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3:54

Do You Really Need 8 Hours of Sleep Every Night? | Body Stuff with Dr. Jen Gunter | TED

TED
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3:24

How Much Sleep Do You Actually Need?

AsapSCIENCE
11,518,165 回視聴 - 10 年前
8:22

Why Do We Have To Sleep?

Be Smart
3,117,752 回視聴 - 9 年前
5:47

Why Do We Sleep? The Dr. Binocs Show | Best Learning Videos For Kids | Peekaboo Kidz

Peekaboo Kidz
2,899,445 回視聴 - 5 年前
1:01

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

WCNC
149,186 回視聴 - 4 年前
0:57

Stop worrying and sleep well! God's got you!

Revelation Church Bettendorf
453 回視聴 - 2 日前
7:11

Too much REM sleep: why do depressed people wake up exhausted? | Human Givens

Human Givens
271,070 回視聴 - 18 年前
0:41

How many hours of sleep a night do I need?

Columbia University Irving Medical Center
118,458 回視聴 - 11 年前
2:27

Can You Get Too Much Sleep?

SciShow
542,395 回視聴 - 8 年前
6:25

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

Better Than Yesterday
397,432 回視聴 - 5 年前
3:33

Why Do We Need Sleep?

SciShow Kids
874,411 回視聴 - 7 年前
4:39

Why some people can thrive on less sleep – BBC REEL

BBC Global
59,002 回視聴 - 2 年前
0:28

How to Improve Your Sleep

Gohar Khan
21,307,504 回視聴 - 1 年前
6:38

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

TED
2,089,026 回視聴 - 7 年前
2:18

How to Stop Oversleeping | wikiHow Asks an Expert Sleep Doctor

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137,325 回視聴 - 4 年前
11:05

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

Ali Abdaal
6,292,775 回視聴 - 2 年前
2:45

What happens when we sleep?

The Economist
10,342,707 回視聴 - 5 年前