Improving overall health is one of the main reasons. Physical fitness can reduce the risk of chronic diseases such as heart disease, type 2 diabetes and high blood pressure. It can also strengthen the immune system and increase life expectancy.
Physical fitness can lead to more energy and endurance in daily life. People often feel more vital and less fatigued when they exercise regularly.
For many people, getting fitter is a way to lose weight or stay at a healthy weight. Regular exercise can help burn calories and improve metabolism.
Exercise can reduce stress by releasing endorphins, called "happiness hormones." It can also help reduce anxiety and depression.