Physical exercise (English: Physical exercise, exercise or workout Punjabi : body exercises Sarīra dē abhi'āsa Greek: Σώμα ασκήσεις Sóma askíseis) is any physical activity that helps maintain or enhance physical well-being. Another meaning of this is regular movement in different parts of the body . Exercise is done for various reasons , such as strengthening the muscles and circulatory system , increasing sportsmanship , losing or maintaining body weight or just enjoying. Regular exercise boosts a person's immune system and helps them recover from a variety of physical problems. Physical exercise is effective in preventing heart disease , circulatory system complications , type 2 diabetes and obesity. In addition , physical exercise plays an important role in overcoming mental fatigue , enhancing positive self-esteem , protecting overall mental health , increasing a person's sexual appeal , and achieving proper body proportions. Child health obesity is a contemporary global problem. Exercise works to prevent obesity in the body. Healthcare providers have described exercise as a "miracle" and a "wonderful" medicine. Exercise has been shown to play an important role in maintaining the overall well-being of the body.