Kathmandu. Heart attack is a disease that can be fatal if not identified and treated on time.A heart attack is when the artery supplying blood to the heart suddenly becomes blocked. In this, the heart does not receive the necessary oxygen and nutrients. The heart weakens and can even cause sudden death.This is a life-threatening condition. But if this condition is identified quickly and treated immediately, its effects can be reduced and lives can be saved.A heart attack occurs when a blood clot forms on the fat accumulated in the arteries or when blood clots. Factors such as tobacco use,...