Question

what happens to the muscles while exercising

Answer 1

the muscles get streged and rest to the muscles exercise benefits all tissue in our body, including your heart,blood vessels,muscles,bones,tendons etc.

Answer 2

Muscle is capable of burning multiple fuels during exercise, including glucose from carbohydrate, fatty acids from fat and amino acids from protein. The type of fuel that is burned for energy depends on the intensity and duration of exercise being performed.
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