Women have about four times as many foot problems as men; lifelong patterns of wearing high heels often are the culprit.
111
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
It is almost impossible to sneeze with your eyes open. It is a defense mechanism that has evolved to protect our eyes from bacteria and debris.
164
A human brain produces as many as 12,000 to 50,000 thoughts per day, depending on how deep a thinker a person is.
23
About half of all Americans are on a diet on any given day.
29
If you were to roll a lung from a human body and out flat it would be the size of a tennis court.
36
2 out of 3 adults in the United States have hemorrhoids.
7