Answer:
Exercise is important to improve the overall health of a person. The major components of physical fitness are flexibility, muscular strength, muscular endurance, cardiovascular, and body composition.
From the beginning of exercise training it affects these health-related components of physical fitness in a positive manner. A regular exercise or physical work improves several of these factors and it was seen that muscular and cardiovascular endurance is very much influenced by doing regular exercise.
How much influence it has on body composition, flexibility, and muscular strength is a topic of study but exercise has a positive effect on health-related components of fitness. A component related exercise can be performed to improve a particular fitness component for example weight exercise for muscular strength.