What happens technically when we get exhausted ? is it the oxygen depletion ? or the build up of lactic acid ? why can’t we run/swim/climb forever ?

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I was watching a documentary about high level athletes and it got me thinking about how extraordinary their feats are, can’t we tackle each symptom of exhaustion to make it so that the general public is more capable ? like an oxygen tank for the oxygen need, a cold water container for the thirst and heat and maybe an exoskeleton for an easier time, I’m asking why these notions are not feasible.

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Anonymous 0 Comments

Your muscles store oxygen and energy when at rest, these reserves are depleted during exercise and the rate at which they can be replenished is lower than the rate at which they are consumed in intense exercise.

These rates are better in people with better cardiopulmonary health, but even the fittest people run into depleting oxygen and energy levels if their level of exercise exceeds this rate.

Lite exercise, you can do almost indefinitely- possibly for days on end, until you need to sleep, provided you are staying hydrated and consuming sufficient calories.

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