Exercise might help prevent sudden cardiac arrest, according to the Centers for Disease Control in the United States.
Sudden cardiac arrest is different from a heart attack, and accounts for nearly 65 per cent of all 730,000 known deaths from heart disease yearly in the US. It occurs when the electrical impulses controlling heartbeat become extremely irregular, causing the heart to shut down. which occurs when a blockage of the blood supply to the heart muscle kills part of the heart itself. CDC recommends at least a half hour of moderate exercise most days of the week to reduce the risk of heart attack, and probably also reduce the risk of sudden cardiac arrest. Brisk walking is one recommended way to exercise for heart health.