There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
The tongue is the strongest muscle in the human body.
50
After age 30, the brain shrinks a quarter of a percent (0.25%) in mass each year.
139
2 out of 3 adults in the United States have hemorrhoids.
7
Pain occurs when sounds are above 130 db.
124
Every hour one billion cells in the body must be replaced.
17
Panophobia is the fear of everything.
52