Rahul exercises regularly by visiting a gymnasium. Of late he is gaining weight. What could be the reason? Choose the correct answer and elaborate.
a. Rahul has gained weight due to accumulation of fats in body.
b. Rahul has gained weight due to increased muscle and less of fat.
c. Rahul has gained weight because his muscle shape has improved.
d. Rahul has gained weight because he is accumulating water in the body.
b. Rahul has gained weight due to increased muscle and less of fat.
Explanation: Regular exercise leads to an increase in the amount of sarcoplasm i.e., the thickness of myofibrils increases along with increase in protein synthesis and mitochondria, and the reduction of body fat content occurs with the increase in the muscle mass of the human body which leads to weight gain.