結果 : how many hours should you spend in each sleep stage
3:42

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

Medical Centric
43,851 回視聴 - 1 年前
2:55

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

TED
672,397 回視聴 - 4 年前
0:41

How many hours of sleep a night do I need?

Columbia University Irving Medical Center
118,539 回視聴 - 11 年前
1:19

How many hours of sleep do you need?

Mount Sinai Health System
766,645 回視聴 - 7 年前
4:48

A walk through the stages of sleep | Sleeping with Science, a TED series

TED
659,534 回視聴 - 4 年前
0:35

Elon Musk Shares How Many Hours of Sleep He Needs to Be Productive! | @MindMasteryX

Inspire Greatness
2,019,682 回視聴 - 2 年前
0:35

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

Dr Karan
3,248,302 回視聴 - 1 年前
0:58

This is how you can achieve PERFECT 100% sleep score every night.

Bryan Johnson
1,322,198 回視聴 - 1 年前
0:50

The Science of Sleep Why We Sleep and H #the #science #of #sleep #why #we #sleep #and #shortsfeed

Jhuman Fact
166 回視聴 - 2 日前
6:38

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

TED
2,089,168 回視聴 - 7 年前
3:24

How Much Sleep Do You Actually Need?

AsapSCIENCE
11,518,245 回視聴 - 10 年前
2:45

What happens when we sleep?

The Economist
10,342,975 回視聴 - 5 年前
0:27

Do people really need 8 hours of sleep?

Cobra Mentorship
467,542 回視聴 - 2 年前
9:41

REM Sleep - How Much Sleep Do You Need

Doctor Mike Hansen
155,784 回視聴 - 5 年前
5:09

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

The Yoga Institute
244,252 回視聴 - 7 年前
3:56

How to Get More REM Sleep

Sleep Doctor
34,347 回視聴 - 1 年前
5:27

How to Get More REM Sleep

Dr. Eric Berg DC
365,588 回視聴 - 3 年前
6:20

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

Half as Interesting
2,633,908 回視聴 - 3 年前
5:26

Are you Getting Enough Deep Sleep?

Sleep Is The Foundation
27,920 回視聴 - 1 年前
3:01

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

Thomas DeLauer
263,738 回視聴 - 9 年前