Wearing headphones for an hour increases the bacteria in your ear 700 times.
233
Cigarette smoke contains 4,800 chemicals, 69 of which cause cancer.
145
Brain scans show that people who view photos of a beloved experience an activation of the caudate - the part of the brain involving cravings.
103
The lense of the eye continues to grow throughout a person's life.
34
We are born with 350 bones, and die with 206.
135
While 7 men in 100 have some form of color blindness, only 1 woman in 1,000 suffers from it.
50
One quarter of the bones in your body are in your feet!
36