One of the organs in the human body is the heart, it continuously pumps blood around our body through blood vessels. The heart is located in the left hand side of your chest and the rib cage keeps the heart protected. The heart has four chambers, the left atrium, right atrium, left ventricle and right ventricle. The heart beats about 100,000 (km) times each day. Every heart weighs like two apples. Did you know your heart beats 35 million times a year.