Amazing and Interesting about Heart

Human Hearts

♥ A heart beats about 100,000 times a day and pumps about 7,200 liters (1,900 gallons) of blood.

♥ An adult’s body holds about five liters of blood. That’s about five big pop bottles full of blood!

♥ If you stretched all your blood vessels out, it would be 96,000 km long. That’s enough to go around the world nearly four times.♥ During an average lifetime (70 years), the human heart will beat more than 2.5 billion times.

♥ ♥ Sample heart rates:

    ♥ Mouse: 850 beats/minute

    ♥ Baby: 140 beats/minute

    ♥ Youth: 70-100 beats/minute

    ♥ Adult: 60-100 beats/minute

    ♥ Athletes: as low as 40 beats/minute

    ♥  Elephant: 35 beats/minute