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52 Interesting Hair Facts

Hair is a protein filament. It grows from follicles found in the dermis. Hair is very strong. It is not as strong as steel but is comparable to aluminium in strength. Brown color hair grows faster than blonde color hair.

Blonde hair
Blonde hair

52 Interesting Hair Facts

  1. Hair is the second fastest growing tissue in the human body after bone marrow.
  2. A healthy strand of hair can extend 30% when it's wet.
  3. At any given time, 90% hair is growing while 10% is resting.
  4. A strand of hair is stronger than a copper wire of the same diameter.
  5. Black is the most common hair color in the world. Blonde hair comes second with 2% of the world population having it, while red color hair is the rarest with 1% of the world's population having it.
  6. Hair can grow almost all over your body except on your palms, feet, lips and mucous membrane.
  7. Shedding of 40 to 150 strands of hair while showering is normal.
  8. Hair is mostly made up of keratin.
  9. On an average hair grows 0.5 inches per month. So, if you have shaved your head, it will take 1 year to have 6-inch-long hair.
  10. If you want hair to grow till your waist, it will take 7 long years to achieve this goal.
  11. The average person has 1,00,000 to 1,50,000 strands of hair on their scalp.
  12. Hair can give lots of information about a person. Using a person's hair, you can tell about a person's bloodstream, medicine, drugs, alcohol, vitamin and mineral. Therefore, it has lots of importance in forensic evidence.
  13. The lifespan of a hair is around 5 years.
  14. All the hair follicles in the human body are formed by the time we are just 5 months old in the womb.
  15. If a hair has fallen it re-grows. It can do this up to 20 times in a lifetime.
  16. The scientific phrase for split ends is called "trichoptilosis".
  17. Eighty percent of Americans wash their hair twice a day. 90% of Japanese wash their hair twice each day. 25% of European wash their hair daily.
  18. Each strand of hair can support up to 100 grams in weight. So, multiplying by the average hair a person has, that is between 1,00,000 to 1,50,000 strands, your head of hair can support the weight equivalent to 2 elephants.
  19. Hair absorbs oil out of water, working as a natural sponge.
  20. The anticipation of sex makes hair grow faster.
  21. The only thing that can't be identified by hair is gender.
  22. In 1950, only 5% women dyed their hair, now the number is increased to 75%.
  23. The only part of head that is not dead is within the scalp.
  24. If a man never shaved his beard, it would grow over 30 feet in this lifetime.
  25. The scientific term for grey hair is "canities".
  26. On an average, women's hair is half the diameter of men's hair.
  27. Crash dieting can cause a temporary loss of hair.
  28. 50% of men have male pattern balding by the age of 50.
  29. For you to be considered as balding, you have to lose 50% of your hair.
  30. Most drugs cause a person to lose their hair loss.
  31. Thyroid Imbalance also causes hair loss.
  32. Iron deficiency can cause hair loss.
  33. African hair grows at a slow pace and is more fragile than European hair.
  34. Asian hair grows the fastest and has the simplest elasticity.
  35. Women lose a lot of hair after giving birth. This is due to their hormones regulating back to normal.
  36. Africans and Europeans are more prone to balding than Asians.
  37. Facial hair grows faster than any other type of body hair.
  38. Humans have the same amount of hair follicles per square inch as a chimpanzee.
  39. Human hair and fingernails continue to grow even after death.
  40. Research shows that hair become drier with age.
  41. Hair transplantation is the only permanent solution for hair loss.
  42. Stress can make dandruff worse.
  43. Alopecia is the medical term for hair loss.
  44. Each hair strand on human body has its own nerve, blood supply and muscle.
  45. Hair grows fastest between ages of 16-24.
  46. Each strand of hair contains up to fourteen different elements together with traces of gold.
  47. The ancient Egyptians were the first to remove unwanted body hair.
  48. In ancient Greece, blonde hair was associated with prostitution.
  49. In 1705, Peter The Great of Russia introduced tax on beard.
  50. In Renaissance Venice, women would dye their hair blonde using horse urine.
  51. A new hair begins to grow as soon as it is plucked from its follicle.
  52. When we are in cold or scared, goosebumps happen when the muscle for each hair strand contracts.
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