What are the symptoms of a heart attack
A heart attack occurs when the flow of blood to the heart is blocked.
The blockage is most often a buildup of fat, cholesterol and other substances, which form a plaque in the arteries that feed the heart (coronary arteries).
Symptoms include feeling a pressure or tightness in the chest, arms or shoulder, nausea or indigestion, shortness of breath, cold sweat, fatigue or feeling lightheaded.
Not all people who have heart attacks have the same symptoms or have the same severity of symptoms.
Some people have mild pain; others have more severe pain.
