Wearing headphones for an hour increases the bacteria in your ear 700 times.
233
Your heart rate can rise as much as 30% during a yawn.
69
If you were to roll a lung from a human body and out flat it would be the size of a tennis court.
36
The human body contains over a billion miles of DNA.
147
Holding hands with someone you love can alleviate physical pain as well as stress and fear.
26
If your DNA was stretched out it would reach to the moon 6,000 times.
256
Only 1 person in 2 billion will live to be 116.
49
The average person who stops smoking requires one hour less sleep a night.
79