[summiwap]

Swimming burns calories, so helps you lose weight and swimming for weight loss has been regularly praised for its cardiovascular health benefits, especially for older people.
As swimming uses so many muscles in your body, your heart and lungs must work hard to supply them all with oxygen. This means that swimming will give your cardiovascular system an excellent workout.

Any exercise that makes you breathe a little heavier is good because it means your body is working hard! As your heart and lungs get stronger you will be able to go for longer before you get tired, your resting heart rate will decrease and blood pressure will lower.

Regular swimming when losing weight will improve your health and may reduce the risk of chronic illnesses, such as heart disease,

As your swimming progresses you will build muscle which in turn burns fat. So calories will be burned as you swim, plus you will burn more calories as your swimming improves.
You will also burn an increased amount of calories even after the exercise is finished as your body uses energy to recover and rebuild muscle tissue.