Poor eyesight (myopia) is associated with higher IQ.
232
Your thumb is about the same size as your nose.
124
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
The largest cell in the human body is the female egg and the smallest is the male sperm.
682
Our eyes are always the same size from birth, but our nose and ears never stop growing.
266
Chewing gum boosts your brain power.
285
The average person's skin weighs twice as much as their brain.
131
The human body contains over a billion miles of DNA.
147