The average sperm cell swims at 8 inches per hour.
4
Our brains have a negativity bias and will remember bad memories more than good ones.
15
Your skeleton keeps growing until you are about 35, then you start to shrink.
74
Clinophobia is the fear of beds!
30
If you were to roll a lung from a human body and out flat it would be the size of a tennis court.
36
Wearing tight pants can lead to impotence in men.
120
Your ears secrete more earwax when you are afraid than when you aren't.
229
Panophobia is the fear of everything.
52