THE human heart usually beats about 60 to 80 times each minute. If you are exercising really hard, it might go up to 200 beats per minute. At the average rate of 70 beats per minute, your heart would beat 100,800 times in one day. The heart's pumping rhythm has three main phases for every single beat. These are created by electrical waves that come from the heart's natural pacemaker - it is called the sinoatrial node.