What is the most amazing pump of all?
The human heart works tirelessly from the moment it begins beating until the moment it stops. In an average lifetime, the heart beats more than 2.5 billion times and pumps 50 million gallons of blood, without ever pausing to rest. The body holds about 6 quarts (5.6 liters) of blood and the heart circulates blood throughout the body three times per minute, so that’s 2,000 gallons of blood pumped over 12,000 miles (19,000 km) every day! Like a pumping machine, the heart provides the power needed for life.
