Why do people sweat during heart attack?

People often sweat during a heart attack due to the body's stress response, which triggers the release of adrenaline. This hormone increases heart rate and blood flow, leading to symptoms like sweating. Additionally, the body may experience a drop in blood pressure and reduced blood flow to the skin, causing a cold, clammy feeling. This sweating is part of the body's attempt to cope with the intense stress and pain associated with a heart attack.