結果 : is 12 hrs of sleep bad
6:25

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

Better Than Yesterday
398,099 回視聴 - 5 年前
0:41

How many hours of sleep a night do I need?

Columbia University Irving Medical Center
120,992 回視聴 - 11 年前
2:27

Can You Get Too Much Sleep?

SciShow
542,533 回視聴 - 8 年前
1:19

How many hours of sleep do you need?

Mount Sinai Health System
767,870 回視聴 - 7 年前
1:01

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

WCNC
150,922 回視聴 - 4 年前
1:28

Pulling an All-Nighter vs. 2 Hours of Sleep: Which is Worse? – Healthy Living and Diet Tips–SELF

SELF
232,473 回視聴 - 10 年前
3:58

What Happens to Your Body on Little Sleep?

ABC News
1,136,220 回視聴 - 9 年前
12:54

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

Dr. Eric Berg DC
491,877 回視聴 - 1 年前
7:22

The Secret to Entering Flow State on Command (consistently)

Harry
354 回視聴 - 1 日前
9:21

Science Explains How Much Sleep You Need Depending on Your Age

BRIGHT SIDE
5,510,798 回視聴 - 6 年前
1:54

Best and Worst Times to Sleep

TechnionSociety
127,793 回視聴 - 14 年前
6:38

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

TED
2,093,233 回視聴 - 7 年前
0:27

Do people really need 8 hours of sleep?

Cobra Mentorship
477,011 回視聴 - 2 年前
3:01

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

Thomas DeLauer
265,871 回視聴 - 9 年前
6:20

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

Half as Interesting
2,635,755 回視聴 - 3 年前
2:41

How To Survive A Day On No Sleep

Seeker
947,492 回視聴 - 10 年前
5:31

Excess Sleep - Causes, Effects & Solutions I Dr. Medha Kapoor, PhD

Dr. Medha Kapoor, PhD
188,092 回視聴 - 5 年前
0:58

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

Bryan Johnson
1,339,566 回視聴 - 1 年前
1:58

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

Dr. Eric Berg DC
70,144 回視聴 - 7 年前
4:10

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

Body Hub
86,503 回視聴 - 3 年前