There is a family with a genetic condition that makes their skin blue, who have been isolated in rural Kentucky for generations.
34
Consumption of TNT turns urine amber or deep red, which people often mistake for blood.
301
Tickling was a form of torture used in ancient China on nobility because it left no mark and recovery was quick.
33
Redheads require up to 20% more anesthesia to be knocked out.
112
During the Black Plague, it was thought that bad smells were the cause of the plague. "Plague Doctors" therefore wore masks with long beak-like noses stuffed with flowers or smoke to hide the smells.
19