5 curiosities about red hair

Between prejudices (who does not remember “Rosso Malpelo”?) and the magnetic appeal of a “fiery” temper, here are 5 things that perhaps you did not know about who have red hair.

1. This feature is called Erythrism and it’s a rarity that affects about 2% of the world population.
2. Red hairs never become gray; simply, red tends to fade to a lighter blond.
3. People with red hair are more sensitive to pain (in medicine, they require stronger anesthesia) and changes in temperature.
4. Red hairs are more difficult to dye (they should first be bleached).
5. People with red hair have less hair: in return, red hair looks thick so they seem even more thicker.