結果 : how much sleep is recommended for 12- to 18-year-olds
0:41

How many hours of sleep a night do I need?

Columbia University Irving Medical Center
98,084 回視聴 - 11 年前
1:38

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AllHealthGo
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9:21

Science Explains How Much Sleep You Need Depending on Your Age

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How many hours of sleep do you need?

Mount Sinai Health System
753,160 回視聴 - 7 年前
2:01

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IntermountainParents
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5:09

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The Yoga Institute
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3:33

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211 回視聴 - 1 日前
0:35

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6:12

How much Sleep do you Actually Need?

Apna College
402,414 回視聴 - 2 年前
1:39

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41,591 回視聴 - 2 年前
1:58

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

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6:18

How Many Hours of Sleep Do Children Need?

FirstCry Parenting
32,782 回視聴 - 2 年前
4:56

Science Explains How Much Sleep You Need Depending on Your Age

Better Life
7,553 回視聴 - 3 年前
7:54

Why Getting the 8th Hour of Sleep Matters

Hypertroph
121,365 回視聴 - 3 年前
3:13

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0:55

At What Age Should You Stop ____?

Sambucha
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1:32

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American Academy of Pediatrics
179,727 回視聴 - 1 年前
0:15

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