Early symptoms of a heart attack can include chest pain, shortness of breath, nausea, lightheadedness, and discomfort in the arms, back, neck, or jaw. If you or someone else experiences these symptoms, seek immediate medical attention to minimize risk and receive proper treatment.

Signs of heart failure include shortness of breath, persistent coughing or wheezing, swelling in the legs or ankles, rapid or irregular heartbeat, fatigue, and difficulty exercising. Other symptoms may involve sudden weight gain, fluid retention, and chest discomfort during physical activity.