Amazing heart facts

Amazing heart facts

1. Our heart pumps about 5 litres of blood each minute
2. In an average 70 year lifetime, our heart beats 2.5 billion times
3. The size of our heart is about the size of our clenched fist
4. Within a year of quitting smoking, your chance of having a heart attack drops in half
5. The heart can produce enough pressure to squirt blood to a distance of 30 feet
6. Heart is the first organ to begin functioning in the fetus
7. Heart disease is the number one killer in the US