Answer:
MEANING
A heart attack is a medical emergency. A heart attack usually occurs when a blood clot blocks blood flow to the heart. Without blood, tissue loses oxygen and dies.
A heart attack occurs when one or more of your coronary arteries become blocked. Over time, a coronary artery can narrow from the buildup of various substances, including cholesterol (atherosclerosis). This condition, known as coronary artery disease, causes most heart attacks.
CAUSES:
Chest Pain, Pressure, Fullness, or Discomfort.
Discomfort in other areas of your body.
Difficulty breathing and dizziness.
Nausea and cold sweats.