The main feature of the heart is the expansion and contraction of the body by sending more carbon dioxide to the blood, sending it to the lungs and sending the blood containing more oxygen to the lungs. When a person is resting, the heart averages perform one million hearts(cycles) through this blood congestion throughout the year. The heartbeat can increased by contraction and expansion of 2 million times which comes from cardiac cycle, the heart beats or the heart rate increases during the course of the race 1 million and 25 million times a year. Throughout life, the heart that pumps blood throughout the body reaches signification amount.
The blood pressure of heart need to be controlled otherwise chances are there to have high blood pressure.