Interesting Heart Facts
What causes the sound your heart makes?
When someone listens to your heart with a stethoscope the sound is often described as - lub-dub lub-dub. The 1st heart sound (lub) is caused by the acceleration and deceleration of blood and vibration of the heart at the time of the closure of the Tricuspid and Mitral Valves. The 2nd heart sound (dub) is caused by the same acceleration and deceleration of blood and vibrations at the time of closure of the Pulmonic and Aortic Valves.
How may times does you heart beat?
The average heartbeat is 72 times per minute. In the course of one day it beats over 100,000 times. In one year the heart beats almost 38 million times, and by the time you are 70 years old, on average, it beats 2.5 billion times!
Does your heart rate change as we age?
Everyone's pulse (average heart rate per minute) changes as we age. Here is a chart of average pulse at different ages:
How much blood does your heart pump?
An average heart pumps 2.4 ounces (70 millilitre) per heartbeat. An average heartbeat is 72 beats per minute. Therefore an average heart pumps 1.3 gallons (5 Litres) per minute. In other words it pumps 1,900 gallons (7,200 Litres) per day, almost 700,000 gallons (2,628,000 Litres) per year, or 48 million gallons (184,086,000 litres) by the time someone is 70 years old.
WOULD LIKE TO SUPPORT AND BE SUPPORTED BY THE SALISBURY AND DISTRICT HEART
Whilst we have made every effort to ensure the information on this page is accurate and correct at the time of publishing, we do not accept any responsibility for any information which is found to be in error, inaccurate or has become out of date. Please see the Salisbury and District Heart Support Groups Terms and Conditions
have any questions or comments
about this web site