What I know about the heart

>The heart pumps blood around the body.

>The blue blood carries waste and the red blood carries energy, food and oxergen.

>The heart has four chambers.

>The vain carries blood.

>Blood goes through the lungs to recharge.

>The more exercise you do the higher your heart rate.

>The heart is bigger on the left.

>The heart is as big as a fist.

>If you have 0 bpm your dead.