Question

Why do we get muscle cramps after heavy exercise?

Answer 1

Due to incomplete burning of glucose, it changes to lactic acid which causes cramps

Answer 2

Heya!

Here is your answer!
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When an aerobic respiration takes place in our muscles and glucose is converted into lactic acid because of the lack of oxygen. muscle cramps are caused.
they can be relieved by hot water bath or massage because this increases the blood circulation which increases the supply of oxygen.
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~Hope it helps~