1. Ancient Egyptians were the first to remove unwanted body hair
  2. There are five million hair follicles on the human body
  3. In Italy during the Renaissance, women dyed their hair blonde using horse urine, while ancient Romans used pigeon dung
  4. Each strand of hair contains 14 elements, including traces of gold
  5. It takes 13 days for white or gray hair to show after shock, stress, or aging
  6. 75% of American women dye their hair
  7. Hair contains information on everything that has passed through your bloodstream, including minerals and drugs
  8. If left uncut, the average length of hair growth on the human body in one year is 10 feet
  9. World’s record for longest hair:  Female, 18′ 5-1/2″ after 30 years of growth;  Male 22′ 3″
  10. Number of hairs on the head by color — blondes: 146,000, black 110,000, brown 100,000, red 86,000
  11. Only 1.5% of the world’s population are redheads, and the U.S. has the largest number at 2%
  12. Hair is the second fastest tissue grown on the body after bone marrow
  13. Asian hair follicles are round, African is flat, and European is oval
  14. Gender cannot be identified by strands of hair
  15. 40-150 strands of hair are shed off the head daily unless you are bald
  16. A full head of hair could support the weight equivalent of two elephants
  17. A single hair has a lifespan of about 5 years
  18. At any given time, 90% of the hairs on your scalp are growing, while the other 10 percent are resting
  19. Balding only begins to become visible once you’ve lost over 50 percent of the hairs from your scalp
  20. Goosebumps from cold or fear are the result of hair follicles contracting, causing the hair and surrounding skin to bunch up
  21. As soon as a hair is plucked from its follicle, a new one begins to grow
  22. All hair is dead, with the exception of the hair that’s still inside the epidermis of your scalp
  23. Hair is made up mostly of keratin, the same protein animals’ horns, hooves, claws, feathers, and beaks are made of
  24. When wet, a healthy strand of hair can stretch an additional 30% of its original length
  25. Hair grows slightly faster in warm weather because heat stimulates circulation and encourages hair growth