I’ve learnt a little about sleep cycles and remember that every 90 minutes is when we move through the 5 stages of sleep, but I’ve also heard it’s recommended to have 8 hours of sleep. Wouldn’t that make you feel drowsy if you’re interrupting the sleep cycle when you wake up after 8 hours?
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Ok I’m reading a lot of comment that start with ‘ I think’ or ‘ I only need 6-7 hours’ and ‘8 hours is all made up’.
I highly recommend reading the book Why We Sleep by Matthew Walker. He’s taught at Harvard and Berkeley and runs the Center for Human Sleep Science, and the book documents his studies on how sleep impacts our performance. One consistent finding he has is that sleeping less than 8 hours impacts our performance the next day and into the future (I can’t remember the precise experiments, but he has students memorise something, and force various groups to sleep different hours) and the ones that sleep 8 hours always perform the best.
I’m a bit troubled at lack of citing papers or resources, so hopefully this book points you in the right direction. I am by no means an expert, but this book fully convinced me to get my 8 hours of sleep every day. It’s truly shocking how bad it is for you long term to not get to that amount.
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