At rest, your heart may appear to be working fine. However, when you physically exert yourself, your heart rate and blood flow increase in order to be able to provide your cells with more oxygen and nutrients (oxygen-rich blood), circulating blood to and from the heart. The heart beats harder and faster, raising blood pressure. If for any reason your heart cannot pump blood in and out properly, you are more at risk for a heart attack or stroke. For this reason, doctors sometimes suggest a ... [Read More]