skin, n.Trivia

Household dust is made of dead skin cells

Hydrogen peroxide actually slows healing by killing the healthy skin cells.

Frogs don't usually drink water; they absorb most of the moisture they need through their skin.

1 square inch of human skin contains 625 sweat glands

Skin is the largest organ in the human body

Skin is constantly being replaced --- most people shed 1.5 pounds of skin each year

Hippopotamuses have thick skin ---- it's 1.5 inches thick.

Skin is constantly being shed - up to 40 pounds in a lifetime

Skin is constantly being replaced; a human has almost 1,000 new skins in their lifetime

Gelatin is made primarily out of cow and pig skins.

The average adult has 22 square feet of skin

Skin is always shedding --- you shed a complete layer of skin every 4 weeks

Honey Badger's skin is tough enough to resist machete blows and is almost impervious to arrows and spears

Dust is less often the origin of the floating specs you see in the air. They're actually more often dead skin cells.

Skin is always floating around in the air at surprising density. 15% of what you breathe in during a train ride is most likely the dead skin cells of the passengers, you included.