• jordanlund@lemmy.world
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    2 days ago

    https://en.m.wikipedia.org/wiki/Rule_of_threes_(survival)

    You can survive three minutes without breathable air (unconsciousness), or in icy water.

    You can survive three hours in a harsh environment (extreme heat or cold). You need shelter!

    You can survive three days without drinkable water.

    You can survive three weeks without food. But, many people have gone for over 40 days during fasting and have survived.