Why are some people hairy?

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Why are some people hairy?
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• Imagine a totalitarian world like the one in the
  2014 movie, The Giver free of suffering, pain
  and choices the only requirement is that one
  should not be different. Thankfully, we dont
  live in such a world. In this world everyone is
  different and unique, by choice or otherwise. And
  do you realize what one of the quickest (yet
  mostly ignored) way of recognizing someone is? By
  their hair, of course.
• Did you know that one of the most noticeable
  differences in ones hair is their hair pattern?
  Some have long hair, some have short hair, some
  have dark hair, and some have blond hair. But why
  so many differences? How did they come to be?

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• So How where did all our hair go?
• There are many theories about why we shed most of
  our hair. It is possible we shed hair to reduce
  the instances of lice infections, or as the Earth
  warmed over the last few thousand years, we shed
  hair to control body temperature (less hair on
  the body means more sweat which helps in cooling
  the body). It is possible that the reasons for
  changes in hair growth varied with geographical
  locations. Species in colder climates may have
  developed more hair than those in warmer
  climates. An outlandish theory even states that
  at some point in our evolution we became a
  semi-aquatic species and replaced body hair with
  body fat. Needless to say, paleontological
  evidence for such a species is still lacking.

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• What about hair growth?
• In 2005, the International Journal of Dermatology
  published a study which studied 511 male and
  female volunteers. It found that the average rate
  of hair growth was 4 inches per year for
  Africans, 5 inches per year for Caucasians and 6
  inches per year for Asians. Other studies show
  how hair density differs in different races. In
  fact, it has been noted that Asians have a much
  lower chance of balding than Africans and
  Caucasians, with Caucasians having the greatest
  chance. The period of hair growth also varies in
  different races Asian hair can have a growth
  cycle of nine years, while African and Caucasian
  hair growth cycles vary between three to seven
  years.

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• So then is it all about genes?
• It would be irresponsible to blame genetics alone
  for that receding hair line. Our bodies first
  produce vellus hair, which is difficult to see
  but very useful for our bodys temperature
  control. As the human body matures, hormones like
  testosterone convert the vellus hair to terminal
  hair, which is dark and is whats responsible for
  forming beards in men. Some factors like
  malnutrition, ill-health or even genetics can
  affect this transition, by causing each follicle
  to react differently. These differences are the
  reason why a person who is balding does not go
  completely bald at once its a slow process.

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• Studies have shown that stress can also adversely
  affect hair growth and can lead to premature
  balding. Extreme stress can stop hair growth and
  cause it to fall off. Some scientists believe
  that that UV exposure and heat also affect hair
  growth on a day to day basis.
• Faulty follicle reaction can also lead to full
  facial hair growth and this condition is known as
  hypertrichosis. This condition is rare but there
  are living examples such as Fajardo Aceves Jesus
  Manuel of Mexico. In women, the availability of
  excess hormones during menopause causes a spurt
  of facial hair growth.

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• Regardless of all these theories and differences,
  it is important to note that modern technology
  has make it possible to control this hair growth
  as you deem fit. You have hair re-bonding for
  permanent hair growth, while processes like
  electrolysis give you permanent riddance of body
  hair.

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• At Forever Bare, we offer electrolysis, a
  treatment for permanent hair removal in Duluth,
  MN in a professional, safe and relaxed
  environment. One of our specialties includes
  hair removal in Duluth, MN. Treatments are
  scheduled by appointment to accommodate your
  schedule.