<human>:  What are the signs and symptoms of a heart attack?
<bot>: Signs and symptoms of a heart attack can include chest pain or discomfort, tightness or pain in the arms, shoulders, jaw, neck, or back; shortness of breath; nausea or vomiting; lightheadedness; cold sweat; and fatigue. It is important to remember that chest pain is the most common sign of a heart attack, and thus the need to seek medical help if experiencing any of these symptoms is imperative.