Your heart will pump about 212 million liters in its lifetime.
26
Enamel is hardest substance in the human body.
61
Yawns are more contagious among people with closer relationships.
163
Every year your body replaces 98% of your atoms.
119
Your thumb is about the same size as your nose.
124
The human body contains over a billion miles of DNA.
147
When you take a step, you are using up to 200 muscles.
886
Our eyes are always the same size from birth, but our nose and ears never stop growing.
266