Question

give scientific reason : We feel exhausted after exercising ​

Answer 1

Answer:

During strenuous exercise, our muscles tire as they run out of fuel and build up waste products. Muscle performance can also be affected by a phenomenon called “central fatigue,” in which an imbalance in the body's chemical messengers prevents the central nervous system from directing muscle movements effectively.

Explanation:

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Answer 2

Answer:

when we undertaken constant exercise ther will be storage of oxygen, therefore,at that time our body and others cells perform anaerobic respiration and thus lactic acid is produced,in this process energy create in much less, therefore we fill exhausted after exercise