30 minutes a day is the answer
<span>The answer is The ability of the heart tissue to conduct electrical signals must be altered in order for the EKG to detect a problem. </span>In order for an EKG to detect a problem the electrical signals traveling through the heart muscle must be altered. If the electrical signal is abnormal it will show <span>up on the EKG graph, indicating a problem.</span>
A heart attack occurs when a blockage in one or more coronary arteries reduces or stops blood flow to the heart, which starves part of the heart muscle of oxygen.Angioplasty: Special tubing with an attached deflated balloon is threaded up to the coronary arteries.<span>Symptoms include tightness or pain in the chest, neck, back, or arms, as well as fatigue, lightheadedness, abnormal heartbeat, and anxiety. Women are more likely to have atypical symptoms than men.</span>