Poor eyesight (myopia) is associated with higher IQ.
232
The human brain is more active during sleep than during the day.
28
We share 70% of our DNA with a slug.
218
The average person will go on a date at least 100 times before they finally marry.
33
Our eyes are always the same size from birth, but our nose and ears never stop growing.
266
Yawns are more contagious among people with closer relationships.
163
Only humans shed emotional tears.
331
