Your stomach produces a new layer of mucus every two weeks so that it doesn't digest itself.
160
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
After age 30, the brain shrinks a quarter of a percent (0.25%) in mass each year.
139
In Japan, condoms are commonly sold 'door to door'!
54
Pain travels through the body at 350 feet per second!
23
One or two alcohol drinks a day can be anti-inflammatory.
75


