Our eyes are always the same size from birth, but our nose and ears never stop growing.
266
Your thumb is about the same size as your nose.
124
The human brain is more active during sleep than during the day.
28
Poor eyesight (myopia) is associated with higher IQ.
232
Only humans shed emotional tears.
331
The average sperm cell swims at 8 inches per hour.
4
When you kiss someone for the first time, you get a spike in the neurotransmitter dopamine, making you crave more.
23
In 30 minutes, the average body gives off enough heat (combined) to bring a half gallon of water to boil.
198