Your heart will pump about 212 million liters in its lifetime.
26
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Stress can result in more headaches as a result of the body rerouting blood flow to other parts of the body.
92
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
There's 100 trillion good bacteria living in your body.
17
You see your nose at all times, your brain just chooses to ignore it.
30