Question

how Heart Attack comes in body

Answer 1

when the nerve through which the blood enters to
heart is blocked by fat then at that stage heart is unable to pump blood such conditions is called heart attack .
by pressing on the chest near the heart one can help those who suffer , by this pressure blood make
passage in the nerve to flow.

Answer 2

heart attack occurs if the flow of oxygen-rich blood to a section of heart muscle suddenly becomes blocked. because of this the heart cannot get oxygen supply. this causes heart attack.