The heart and its beat are what keeps us alive. It happens to be the hardest working muscle in the human body. At an average rate of 80 times a minute, the heart beats about 115,000 times every day, or in a year, about 42 million times. A normal healthy heart beat is 60 to 100 beats per minute, or BPM. The job of the heart in the cardiovascular system is to pump and circulate oxygen and nutrient filled blood to the body’s organs, tissues, and cells through the passage of blood vessels. In ... [Read More]