Exercise is good for your lungs. Working harder increases the lungs' capacity to move air in and out. As a result, more oxygen is drawn into the body and more carbon dioxide and other waste gases are expelled. Regular exercise helps prevent the decline in oxygen uptake that occurs naturally with aging and as a result of inactivity. But remember, when you stop exercising, you lose all improvements in the functioning of your lungs in as few as 3 months.
Exercise is good for diabetics.
By helping muscles to take up glucose from the bloodstream and use it for energy, exercise prevents sugar from accumulating in the blood. By burning calories, exercise helps control weight, an important factor in the management of type 2 diabetes. Exercise helps control your weight. Muscles need energy to work. Energy is measured in calories.