‘Old people smell’ is actually caused by a chemical, 2-nonenal, that old people secrete through their skin
8
Smokers get ten times more wrinkles than non-smokers.
171
Fingers prune underwater not because of them absorbing the water or washing away the oil, but because of an evolutionary trait caused by the brain to enhance the grip of your fingers underwater.
24
There is a disease called ichthyosis that turns the skin scaly like a fish.
90
The Manchineel Tree is so poisonous, rainwater dripping off it’s leaves will burn your skin.
17