What is exactly stamina? What happens when it gets trained? Do your lungs get better and more efficient at pumping air?
In: Biology
The human body is very adaptable to do what it needs to do most of the time. The problem is that you can’t just “tell” your body to get better. You have to do what you can, which results in a little bit of damage. The body repairs itself plus a little extra for next time. If your body is used to sitting on the couch all day, it will get very good at doing that. If you start exercising, your body gradually gets better at it, creating stamina.
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