The left lung is smaller than the right lung to make room for the heart, which is in the middle of your chest but leans to the left.
Right left, right left, right left… the right valve of the heart pumps blood into the lungs while the left valve sends fresh blood flowing through the body.
The largest heart on the planet belongs to the blue whale, typically 1,500 pounds
1.5 million barrels of blood are pumped by the heart in an average lifetime.
The heart pumps vital blood through 60,000 miles of vessels that feed your organs and tissues
Each minute your heart pumps 1.5 gallons of blood.
The heart pumps blood to almost 75 trillion cells. Only the cornea receives no blood.
Your heart beats 100,000 times a day, 40 million times a year, and approximately three billion times in an average lifetime.