Only 1% of bacteria cause disease.
45
If you were to roll a lung from a human body and out flat it would be the size of a tennis court.
36
Sitting straight upright in your chair is bad for your back. You should instead slouch at an angle of 135 degrees.
10
When you look up at the blue sky and see white dots flying around, you’re actually seeing your own white blood cells.
30
On average, women have always lived longer than men.
195
Men have larger hearts; women's hearts beat faster.
77
Lack of water is the #1 trigger of daytime fatigue.
148