Hair facts

hair facts

  1. Chemotherapy causes the hair to fall out because it is intended to eliminate cells that replicate quickly. Since hair follicle cells grow and divide quickly, they are adversely affected.
  2. Hair is the second fastest growing tissue in the body after bone marrow.
  3. On average, you shed around 50-150 strands of hair a day.
  4. A new hair begins to grow as soon as it is plucked from its follicle.
  5. single hair has a lifespan of about five years.
  6. Hair is made up of mostly keratin, the same substance that makes up most of horses hooves, mane, and tail.
  7. If you counted the growth of all the hairs on an average person’s head, in one year it would equate to over 10 miles of hair growth!
  8. On average, people have about 100,000 strands of hair on their head.
  9. Black hair is the most common hair color.
  10. Hair is composed of the following elements: Carbon (50%), Oxygen (21%) Nitrogen (17%), Hydrogen (6%), Sulphur (5%).
  11. Each hair strand has its own muscle, nerve, and blood supply.
  12. Darker hair tends to have more carbon present than lighter hair.
  13. We get goosebumps when we are cold or scared because each muscle for each hair strand contracts, causing the hair to rise.
  14. The average lifespan of an eye lash is 150 days.
  15. The longest female hair was measured at 18 feet and 5.5 inches. Xie Jiuping grew her hair for over 30 years!
  16. On average, women’s hair is half the diameter of men’s hair.
  17. In 1950, only 5% of women dyed their hair. Now, that number has increased to 75%!
  18. Scientists can tell what you eat, drink, or the environment you live in, by examining a small piece of your hair.
  19. The natural part is caused by hair streams on the scalp. This refers to the effect created when hair follicles slope in the same direction. When two hair streams slope in opposite directions, a natural part occurs.
  20. In Russia, there was once a tax for wearing a beard.
  21. Scientists have discovered that people with a higher IQ have more zinc and copper in their hair.
  22. The purpose of hair is to regulate body temperature since our head lacks the thermal insulation fat layers.
  23. Every hair follicle is entirely independent of neighboring strands.
  24. Less than 2% of the world’s population has naturally red hair.
  25. Hair becomes drier with age as a result of shrinking oil glands.
  26. Hair transplantation is the only permanent solution for hair loss.
  27. Gender and age cannot identify by a strand of hair.
  28. Most hair extensions come from people of Chinese and Indian heritage.
  29. Stress can make dandruff worse.
  30. The average American woman spends between 10-23 thousand dollars in her lifetime on unwanted hair removal.
  31. Two types of melanin contribute to hair color: eumelanin and pheomelanin.
  32. In ancient Rome, women dyed their hair with pigeon droppings.
  33. Alopecia is the medical term for hair loss.

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