2) The volume of blood pumped by the heart can vary over a wide range, from five to 30 liters per minute
3) Every day, the heart creates enough energy to drive a truck 20 miles. In a lifetime, that is equivalent to driving to the moon and back.
4) Because the heart has its own electrical impulse, it can continue to beat even when separated from the body, as long as it has an adequate supply of oxygen.
5) The heart pumps blood to almost all of the body’s 75 trillion cells. Only the corneas receive no blood supply
6) During an average lifetime, the heart will pump nearly 1.5 million gallons of blood—enough to fill 200 train tank cars.
7) The heart begins beating at four weeks after conception and does not stop until death
8) Early Egyptians believed that the heart and other major organs had wills of their own and would move around inside the body.
9) Prolonged lack of sleep can cause irregular jumping heartbeats called premature ventricular contractions (PVCs).
10)Cocaine affects the heart’s electrical activity and causes spasm of the arteries, which can lead to a heart attack or stroke, even in healthy people.
11)The “thump-thump” of a heartbeat is the sound made by the four valves of the heart closing.
12) A man’s heart weighs about 10 ounces, while a woman’s heart weighs approximately 8 ounces.
13)You’re more likely to have a heart attack on Monday morning than at any other time of the week.
14) Health experts now have proof that laughter is good medicine.
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