When a sportsman runs, he often gets muscle cramps. Give reason.

 During strenuous exercises like running, the body needs instant energy. This is fulfilled through anaerobic respiration. Muscle cells break down glucose to produce lactic acid and energy is produced.

$Glucose\ \ \xrightarrow{Without\ the\ presence\ of\ Oxygen} Lactic\ Acid\ +\ Energy$

Lactic Acid produced during this process accumulates and causes muscle cramps.


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