Do not attempt to wake up earlier than your body needs for

"Do not attempt to wake up earlier than your body needs for the purpose of gaining additional hours in your days. You do indeed get to use the additional hour(s), but you are screwing up your productivity with lowered cognitive functions and sleepiness during your waking hours."
— Peak Human Clock

Attempting to wake up earlier than what your body needs can have detrimental effects on your alertness, performance, and overall wellbeing.

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