結果 : does the time of day you sleep matter
2:55

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

TED
668,880 回視聴 - 4 年前
2:45

What happens when we sleep?

The Economist
10,335,313 回視聴 - 5 年前
0:35

Doctor Explains Why You DON’T Need 8 Hours Sleep!

Dr Karan
3,230,094 回視聴 - 1 年前
6:38

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

TED
2,084,550 回視聴 - 6 年前

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3:54

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

TED
3,257,054 回視聴 - 2 年前
5:40

Sleepy during the day but not at night! A sleep expert answers your questions

Sleep Doctor
21,104 回視聴 - 1 年前
1:01

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

WCNC
147,602 回視聴 - 4 年前

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1:54

Best and Worst Times to Sleep

TechnionSociety
127,271 回視聴 - 14 年前
1:44:58

Why Sleep Matters

Harvard Medical School
1,724,563 回視聴 - 5 年前
1:54

How Sleep Affects Your Brain

Dana Foundation
337,005 回視聴 - 4 年前
6:25

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

Better Than Yesterday
396,637 回視聴 - 5 年前
0:30

What the time you go to sleep says about you… ⏰💯

Michael Storen
2,936,920 回視聴 - 1 年前
1:58

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

Dr. Eric Berg DC
68,724 回視聴 - 7 年前
14:06

Sleep Experts Debunk 15 Sleep Myths

Insider Science
6,792,672 回視聴 - 5 年前
19:19

Sleep Is Your Superpower | Matt Walker | TED

TED
13,860,191 回視聴 - 5 年前
3:28

Sleep study suggests bad news for night owls

KXAN
44,369 回視聴 - 6 年前
5:09

Yoga Guru - Hansaji | How many hours should you sleep?

The Yoga Institute
243,392 回視聴 - 7 年前
2:41

How To Survive A Day On No Sleep

Seeker
940,848 回視聴 - 10 年前
3:42

Mastering the Art of Sleep: Finding the Perfect Balance of Deep, Light, and REM Sleep

Medical Centric
41,937 回視聴 - 1 年前
5:51

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

CBS Mornings
271,947 回視聴 - 7 年前