How Much Sleep Do You Actually Need?
How much sleep do you really need? | Sleeping with Science, a TED series
How Much Sleep Do We REALLY Need?
Are naps actually good for us? | Sleeping with Science
How Much Sleep Do You Really Need? - Professor Of Neuroscience
The brain benefits of deep sleep -- and how to get more of it | Dan Gartenberg
Do You Really Need 8 Hours of Sleep Every Night? | Body Stuff with Dr. Jen Gunter | TED
8 時間の睡眠は必要ではない理由を医師が解説します。
Science Explains How Much Sleep You Need Depending on Your Age
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Reasons Why Seniors Don’t Sleep Well at Night | Senior Sleep Problems
加齢と良質な睡眠:両者は相関関係にあるか? - 老化に関する研究
Sleep deprivation test with a spoon - are you sleep deprived?
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What Happens To Your Body And Brain If You Don't Get Sleep | The Human Body
Sleep deprivation can lead to a 300-400% increase in being depressed and anxious
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How much Sleep do you Really Need?