Health is a state of complete physical, mental and social well-being.
Good health can be described as a state when the body is maintained optimum physical fitness, mental maturity, alertness, and freedom from anxiety and social stress.
Good health can be maintained by doing regular exercise.
The necessity of physical exercise:
Physical exercise is mandatory to maintain good health.
Exercising promotes good health in the body by making bones and muscles stronger.
The physiological changes in the body while exercise are, increased cardiac output, more blood in the arteries, expansion of lung muscles to inhale maximum amount of oxygen
Blood circulation is quicker and therefore oxygen supply to different cells of the tissues is more and so is the oxidation of food. Therefore, increased release of energy.
Exercise helps promote mental peace and improves appearance.