Comments by "p11" (@porky1118) on "Harvard Professor: REVEALING The 7 Big LIES About Exercise, Sleep, Running, Cancer u0026 Sugar!!!" video.

  1. 10:00 I never heard, you have to sleep 8 hours. I never had a clear number in mind, but I always thought, it's around 10 hours for children, which decreases down to around 7 hours for adults, maybe even less when having a healthy lifestyle. And the chirstain monks also had a similar rule: 7 hours for work, 7 hours for god, 7 hours for sleep. When I can't sleep I always think "I want to have at least 7 hours of sleep", so I wouldn't be tired the next day. For example when my work starts at 9, I probably want to get up somewhere around 8, so I try to go to be asleep at 1 in the night at latest. But a few years ago, this logic made it feel weird to me to go to bed way before midnight. So going to bed at 10 always felt too early. And even if I was able to fall asleep around 1, I often got up between 6 and 7 anyway, and was tired the next day. But now I even try to go to bed around 8. Usually it I actually go to bed a little later, 9 or 10, but I still plan to have 8 or more hours of sleep if possible. I never get as much sleep as I plan. I wake up in the middle of the night or don't fall asleep as soon, or wake up earlier. So planning in 8 hours is pretty reasonable. I actually want to be able to have around 9 hours of sleep. The plan is to sleep early, wake up in the middle of the night after around 3 hours of sleep stay awake at least 3 hours, then sleep another 2 or 3 hours. Because you usually only get one phase of deep sleep during one sleep, I think. And this phase usually starts during the first hour and lasts between 1 or 2 hours. And this is the most important sleep. And if I stay awake for at least 3 hours, the chance is pretty high, that I get another deep sleep when I fall asleep next time.
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