Answer:
a heart disease is the condition that arises when the heart is deprived of sufficient amounts of blood,oxygen, nutrients etc .the illness is caused by atherosclerosis cholesterol plagues that form in the coronary arteries that provide the heart muscles with blood rich in nutrients and oxygen.when plague is dislodged it moves to narrower parts of the coronary artery restricting blood flow ,thus depriving it oxygen and nutrients and hence causing a heart attack.