結果 : why does my deep sleep vary so much
1:01

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

WCNC
125,771 回視聴 - 4 年前
2:45

What happens when we sleep?

The Economist
10,203,909 回視聴 - 5 年前
7:11

Too much REM sleep: why do depressed people wake up exhausted? | Human Givens

Human Givens
264,159 回視聴 - 17 年前
3:13

How Some People Can Sleep Through Anything

Seeker
254,612 回視聴 - 9 年前
5:12

What causes insomnia? - Dan Kwartler

TED-Ed
5,801,222 回視聴 - 6 年前
2:55

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

TED
619,488 回視聴 - 3 年前
9:38

Insomnia: why can't I sleep?

The Guardian
520,819 回視聴 - 5 年前
5:00

The Danger of Sleeping Too Much

The Wall Street Journal
172,181 回視聴 - 11 年前
14:15

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

AsapSCIENCE
4,247,511 回視聴 - 2 年前
11:43

How to Stop Waking Up in the Middle of the Night- 6 Ways to Beat Insomnia Without Medication

Therapy in a Nutshell
1,785,501 回視聴 - 2 年前
1:09

Are You Sleeping Too Much?

University of California Television (UCTV)
91,829 回視聴 - 7 年前
3:01

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

Thomas DeLauer
220,943 回視聴 - 8 年前
1:54

How Sleep Affects Your Brain

Dana Foundation
260,609 回視聴 - 3 年前
1:58

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

Insider Tech
438,626 回視聴 - 6 年前
3:31

What Happens When A Night Owl Wakes Up Early

Insider Science
2,655,669 回視聴 - 5 年前
2:18

How to Stop Oversleeping | wikiHow Asks an Expert Sleep Doctor

wikiHow
123,014 回視聴 - 4 年前
4:50

What Happens To Your Body And Brain If You Don't Get Sleep | The Human Body

Insider Tech
6,641,002 回視聴 - 6 年前
0:38

I learned to Fall Asleep in 2 Minutes

Mike Shake
13,321,842 回視聴 - 2 年前
1:59

How to deal with your insomnia — and finally get to sleep | Sleeping with Science

TED
316,154 回視聴 - 2 年前
1:17

How to fall back asleep in the middle of the night

Insider Tech
226,490 回視聴 - 7 年前