結果 : what does good sleep mean
8:22

Why Do We Have To Sleep?

Be Smart
3,097,429 回視聴 - 8 年前
5:47

Why Do We Sleep? The Dr. Binocs Show | Best Learning Videos For Kids | Peekaboo Kidz

Peekaboo Kidz
2,732,526 回視聴 - 5 年前
2:45

What happens when we sleep?

The Economist
10,263,435 回視聴 - 5 年前
1:54

How Sleep Affects Your Brain

Dana Foundation
293,701 回視聴 - 3 年前
6:38

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

TED
2,045,514 回視聴 - 6 年前
3:42

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

Medical Centric
32,280 回視聴 - 1 年前
2:55

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

TED
643,936 回視聴 - 4 年前
2:13

Why better sleep means a better sex life | Sleeping With Science

TED
300,911 回視聴 - 2 年前
9:41

REM Sleep - How Much Sleep Do You Need

Doctor Mike Hansen
150,394 回視聴 - 4 年前

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13:32

14 English expressions about SLEEP

English with Emma · engVid
831,566 回視聴 - 8 年前
9:38

Insomnia: why can't I sleep?

The Guardian
560,110 回視聴 - 5 年前
4:48

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

TED
620,472 回視聴 - 4 年前
1:01

Mayo Clinic Minute: What are the stages of sleep?

Mayo Clinic
111,241 回視聴 - 6 年前
7:04

The Sleep-ADHD Paradox: Why Can't I Get a Good Night's Sleep?

Dr. Tracey Marks
341,665 回視聴 - 1 年前
0:41

How many hours of sleep a night do I need?

Columbia University Irving Medical Center
97,042 回視聴 - 11 年前
5:26

Are you Getting Enough Deep Sleep?

Sleep Is The Foundation
24,537 回視聴 - 1 年前
5:51

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

CBS Mornings
262,344 回視聴 - 6 年前
1:01

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

WCNC
136,767 回視聴 - 4 年前
25:23

The Secret to a Good Night's Sleep, According to Science

SciShow
628,032 回視聴 - 5 年前
1:21:58

The Dreaming Mind: Waking the Mysteries of Sleep

World Science Festival
1,351,728 回視聴 - 1 年前