Patients will receive the drug: it makes the heart beat strength. If you are having trouble breathing, you may receive oxygen to make breathing easier and more productive regular exercise helps increase the performance of your heart and blood vessels. By increasing oxygen consumption capacity. It does this by increasing the strength of your heart will send the blood (and oxygen) to the muscles. This is achieved mainly through increasing the size of the heart (ventricles) of the heart-pumping room doesn't need l pump blood to provide the same amount of blood. This is evident in the pulse rate and the heart rate slows down to the intensity of exercise the same.