What is exactly stamina? What happens when it gets trained? Do your lungs get better and more efficient at pumping air?
In: Biology
Now this isnt an answer, more an add-on question.
Isnt Stamina based on sugars stores in muscles too?
Its just my faint memories of biology and sporrs classes, but don’t Muscles save sugars in some form to use directly, and when all that reserve is used up you cant run anymore and it takes a day or two to get back in shape
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