As a follow-up to that skin infographic, here are 20 really interesting skin facts we’ve found:
1. Your skin loses about 30,000 to 40,000 dead skin cells from the surface almost every minute.
2. Your skin sheds a layer of these dead cells every 24 hours and renews itself about every 28 days.
3. The average person will lose around 48 kilograms of skin by age 70.
4. An adult has about 21 square feet of skin — about the size of a blanket.
5. Skin is thickest on the soles of the feet (3mm) and thinnest on the eyelids (1mm).
6. Skin makes up about 16% of our total body weight.
7. 70% of the dust in your home is dead human skin (ew!). There can be over a million dust mites on your mattress and pillow, feasting on the dead skin cells that fell off you last night!
8. The skin contains 45 miles of nerves.
9. Every square inch of skin on the human body has about 32 million bacteria on it, but fortunately, the vast majority of them are harmless.
10. Horns, hoofs, hair (fur), feathers and scales are evolutionary adaptations of the epidermis.
11. Goosebumps are actually little pimples that help retain a layer of warm air over our body.
12. A pair of feet have 500,000 sweat glands and can produce about a pint of sweat a day.
13. White skin appeared on humans just 20,000 to 50,000 years ago, as dark-skinned humans migrated to colder climates and lost much of their melanin pigment.
14. The most common skin conditions are calluses, acne, dandruff, dry skin, skin cancer and cellulite.
15. Skin waterproofs, protects and insulates the body, as well as exuding antibacterial substances that prevent infection and manufacturing vitamin D.
16. Collagen is what determines how smooth the skin is.
17. Exfoliating is a key ingredient to healthy radiant skin. Dead cells feed bacteria and they also cause your pores to become blocked leading to unhealthy skin.
18. The non-hairy skin on the palms of your hands and soles of your feet is called glaborous skin.
19. It’s estimated that 23% of Americans have at least one tattoo.
20. The medical term for the sensation of insects crawling either on or under the skin is formication (not to be confused with fornication!).