結果 : is it ok to sleep during the day instead of night
2:41

How To Survive A Day On No Sleep

Seeker
942,584 回視聴 - 10 年前
0:41

How many hours of sleep a night do I need?

Columbia University Irving Medical Center
117,189 回視聴 - 11 年前
1:28

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

SELF
230,460 回視聴 - 10 年前
5:51

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

CBS Mornings
272,294 回視聴 - 7 年前
3:57

How To Take The Ideal Nap And Avoid Bad Sleep

Insider Tech
362,665 回視聴 - 7 年前
2:55

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

TED
670,738 回視聴 - 4 年前
6:20

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

Half as Interesting
2,633,054 回視聴 - 3 年前
6:38

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

TED
2,086,927 回視聴 - 6 年前
0:39

The Importance of Sunlight for Sleep-Wake Rhythms

Lord Solo
650 回視聴 - 2 日前
2:45

What happens when we sleep?

The Economist
10,339,506 回視聴 - 5 年前
1:54

Best and Worst Times to Sleep

TechnionSociety
127,410 回視聴 - 14 年前
3:54

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

TED
3,275,555 回視聴 - 2 年前
3:58

What Happens to Your Body on Little Sleep?

ABC News
1,134,483 回視聴 - 9 年前
1:51

I Can't Sleep for More Than 4 Hours a Night - Why? | This Morning

This Morning
55,149 回視聴 - 6 年前
0:27

Don't sleep on your back!

YOGABODY
524,851 回視聴 - 1 年前
1:58

Why 4 Hours Of Sleep Is Terrible For You — Even If You Don't Feel Tired

Insider Tech
450,866 回視聴 - 7 年前
8:19

Sleep During the Day, Awake at Night for 30 Days

Disrupt
1,496,068 回視聴 - 4 年前
1:01

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

WCNC
148,467 回視聴 - 4 年前
9:38

Insomnia: why can't I sleep?

The Guardian
585,895 回視聴 - 5 年前
0:28

How people sleep at school 😴📚 #shorts

MaxPreps
5,191,886 回視聴 - 1 年前