8 時間の睡眠は必要ではない理由を医師が解説します。
How many hours of sleep a night do I need?
Do You Really Need 8 Hours of Sleep Every Night? | Body Stuff with Dr. Jen Gunter | TED
if you wake up tired
Why you're still tired after getting 8 hours of sleep
The brain benefits of deep sleep -- and how to get more of it | Dan Gartenberg
How Much Sleep Do You Really Need? - Professor Of Neuroscience
How to Sleep Less and Get More Out of Your Day- Thomas DeLauer
👉Fall Asleep Fast 😴 Gentle Sleep Music
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How to Sleep Less & Sleep Better
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Sleep deprivation can lead to a 300-400% increase in being depressed and anxious
This is how you can achieve PERFECT 100% sleep score every night.
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Mastering the Art of Sleep: Finding the Perfect Balance of Deep, Light, and REM Sleep
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Why You're Always Tired (and how to fix it)
Elon Musk Shares How Many Hours of Sleep He Needs to Be Productive! | @MindMasteryX
How to Clear Your Mind So You Can Sleep! Dr. Mandell