Your thumb is about the same size as your nose.
124
Our eyes are always the same size from birth, but our nose and ears never stop growing.
266
The human brain doesn't stop developing until about 25 years old.
102
Chewing gum boosts your brain power.
285
The human body contains over a billion miles of DNA.
147
When you take a step, you are using up to 200 muscles.
886
The average person's skin weighs twice as much as their brain.
131
Your heart will pump about 212 million liters in its lifetime.
26