why do our muscles stop growing at a certain point, why can’t we constantly workout and keep growing them?
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Muscles need a certain amount of hormones to grow to a given size. Testosterone is a hormone that causes muscle growth (among other things), and as a human increases their muscle mass, they’ll eventually reach a point where their bodies don’t supply a big enough amount for continued muscle growth to happen.
Anabolic steroids is a term used for artificial substances that causes tissue growth in humans and other creatures. By injecting steroids that are similar enough to the growth hormones the human body uses, muscles can be made to grow even bigger.
However, this can cause severe adverse effects. Some muscles that shouldn’t grow might start growing again (such as your heart). Your skeleton will not grow if you’re already an adult, and the size of the bigger muscles could easily take up space in your body that is supposed to contain other things, such as intestines, lungs, etc.
Some animals produce way more growth hormones than humans, and can therefore grow much bigger muscles.
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