During an average lifetime, the human heart will beat more than 2.5 billion ... to an average of 72 beats per minute. The aorta, the largest artery in the body, is almost the diameter of a garden ...

The human heart is a vital organ that pumps blood through the body. You probably don't even think about it, but your heart is always working — it beats about 100,000 times a day, which adds up ...