After age 30, the brain shrinks a quarter of a percent (0.25%) in mass each year.
139
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Your fingernails grow faster in summer.
744
The human brain is more active during sleep than during the day.
28
Human hair and fingernails continue to grow after death.
7
Our eyes are always the same size from birth, but our nose and ears never stop growing.
266
The human brain has the capacity to store everything that you experience.
4k
A man's beard grows fastest when he anticipates sex.
239