8. How Bloody Big?!
As a child, your heart is roughly the same size as your clenched fist. For comparison, adult hearts are roughly the size of two hands clasped together.
For interest’s sake, the average size of a heart valve is a U.S. half dollar. And a blue whale’s heart is the largest at roughly 1,500 pounds.
![]()
9. Full Body Blood Supply
Did you know that the heart is responsible for providing adequate blood supply to 75-trillion cells throughout the entire body?
Well, that’s almost correct. The only area of the body that doesn’t require blood supply is the corneas (in the eyes).
![]()
10. Miles and Miles of Blood Vessels
Imagine commuting 60,000 miles to and from work each day! Well, that’s roughly the length of the blood vessels, responsible for providing precious blood to our organs and tissues.
Any damage to this route of valves (or the heart itself) puts your blood-pumping-power and demand at risk, causing the heart to work even harder.
![]()
11. Happiness = Happy Heart
According to research from the Cleveland Clinic, happiness makes our hearts happy, quite literally.
Being happy and feeling happy creates emotional vitality that translates to lower risk of heart disease.
![]()
12. Key to Heart Health
You guessed it, the key to good heart health is…exercise.
Not only is daily physical fitness vastly important to keeping your heart healthy—walking, running, and kicking a soccer ball are totally free!