There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
Dating back to the 1600's, thermometers were filled with Brandy instead of mercury.
16
The pupil of the eye expands as much as 45 percent when a person looks at something pleasing.
130
If your DNA was stretched out it would reach to the moon 6,000 times.
256
Your skeleton keeps growing until you are about 35, then you start to shrink.
74
Smoking while pregnant increases the chances of spontaneous abortions (miscarriages) stillbirths and premature labor.
77
Your spit has a painkiller 6 times stronger than morphine. It contains a substance called opiorphin that is stronger than morphine.
39
An average adult produces about half a liter of flatulent gas per day, resulting in an average of about fourteen occurrences of flatulence a day.
8