結果 : how many hours of sleep do you need to be fully rested
0:35

8 時間の睡眠は必要ではない理由を医師が解説します。

Dr Karan
3,676,643 回視聴 - 2 年前
0:41

How many hours of sleep a night do I need?

Columbia University Irving Medical Center
153,913 回視聴 - 12 年前
3:54

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

TED
4,109,488 回視聴 - 2 年前
0:22

if you wake up tired

Sleep Doctor
254,983 回視聴 - 2 年前
1:01

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

WCNC
167,247 回視聴 - 5 年前
6:38

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

TED
2,164,086 回視聴 - 7 年前
0:30

How Much Sleep Do You Really Need? - Professor Of Neuroscience

Deep Dive with Ali Abdaal
214,597 回視聴 - 2 年前
3:01

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

Thomas DeLauer
296,861 回視聴 - 9 年前
0:08

👉Fall Asleep Fast 😴 Gentle Sleep Music

Miss Moon
404 回視聴 - 2 日前
2:18

Are naps actually good for us? | Sleeping with Science

TED
1,275,883 回視聴 - 3 年前
10:30

How to Sleep Less & Sleep Better

Sadhguru
4,599,497 回視聴 - 10 年前
0:27

How to Fix Your Sleep Schedule

Gohar Khan
3,342,731 回視聴 - 3 年前
0:35

Sleep deprivation can lead to a 300-400% increase in being depressed and anxious

Bryan Johnson
3,215,070 回視聴 - 2 年前
0:58

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

Bryan Johnson
1,703,535 回視聴 - 2 年前
0:56

Sleep deprivation test with a spoon - are you sleep deprived?

Levitex Sleep
287,875 回視聴 - 2 年前
3:42

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

Medical Centric
73,948 回視聴 - 2 年前
12:54

How to SLEEP faster & better? Unlock the superpower of sleep by Abhi and Niyu

Abhi and Niyu
3,585,966 回視聴 - 1 年前
14:15

Why You're Always Tired (and how to fix it)

AsapSCIENCE
4,876,666 回視聴 - 3 年前
0:35

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

Inspire Greatness
2,855,130 回視聴 - 3 年前
0:28

How to Clear Your Mind So You Can Sleep! Dr. Mandell

motivationaldoc
425,972 回視聴 - 3 年前