A thread about fasting (not eating)
Fasting fucking won for several reasons but the main reason people should care about fasting is to maximize autophagy.

>what the fuck is autophagy
Autophagy is the process in which cells janny themselves (removing misfolded/damaged proteins, clearing up metabolic waste, repairing / removing damaged cell organelles) which peaks somewhere around 16-20hours after the last time you ate something.
Controlled fasting aims to maximize how long you stay in this peaked state without sacrificing muscle mass or neurons.
As a general rule: Don't fast for more than 2 days if you care about gym gains (muscles begin to atrophy around 3 days)

>so do i just drink water or
you can drink anything as long as there are no calories in it. If something contains sweeteners then you should be cautious because these can mess with your insulin.

You should also be taking electrolytes during this. Potassium , sodium and magnesium are the most important to get in you so focus on these first. You can buy 'low sodium salt' which is usually a mix of potassium and sodium chloride, or you can dose accurately with pills

>why should i do any of this
after 16-20 hours your brain starts producing A LOT of endorphines and upregulates your adrenaline which makes you feel like you could take on a lion. This actually increases the longer you stay fasted.