The science of hair loss

Colour Me Natural, Hair Consultancy

According to American Medical Association there is a 4 in 7 chance that you will inherit genes for baldness. The statistics show that hair loss is an increasingly prevalent condition faced by a number of people. To understand the gravity of the condition, let’s first take a look at the science of hair loss.

Colour Me Natural, Hair Consultancy

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Hair loss, medically is termed as androgenic alopecia, is a genetic condition faced by men and women both, however the pattern may differ. The presenting signs in men are general thinning of hair with hairline receding away from the crown, and resulting in partial or complete baldness over the course of time. This loss of frontal hairline usually gives men a horseshoe-like rim of hair on the head.  In women, on the other hand, alopecia presents as an overall loss of hair, rarely resulting in complete baldness. While men tend to lose their hairline, women generally lose hair from over the top of the scalp.

Alopecia is governed by dihydrotestosterone, commonly known as DHT. DHT is an androgen hormone that is responsible for death of hair follicles in the scalp. The hormone basically is a converted form of testosterone. Testosterone normally does not cause baldness, however when it combines with enzymes in the follicles, it produces DHT. Once formed, DHT can bind to the receptors in scalp follicles, leading to a change in the genetic make up of the cells. This results in overall shrinking of these cells, which leads to death of the hair because they cannot survive without healthy follicles.

Colour Me Natural, Hair Consultancy

Credits: Google

The conversion of testosterone into DHT is generally seen in susceptible people. This susceptibility is mainly caused by genes. While one person may be genetically prone to baldness, others may not be. This is to say that if you are lucky enough with your genetic make up, you will not suffer from hair loss, while in some people where hair loss runs in family cannot find an escape from it.

Although, genetic predisposition is the main interplay, age is also one of the factors. There is not much literature available to prove this, however the susceptibility of DHT conversion increases with age. This explains baldness over the period of years as a person reaches old age.

Apart from the genetic predisposition and gender, hair loss can also result from other factors. Proper nutrition is the key to a healthy body. A poor diet that lacks nutrients, mainly proteins and vitamins, leads to thinning and eventual loss of hair. Another cause may be the imbalance in hormones. In females, especially during the time of pregnancy, childbirth or menopause, the hormones tend to fluctuate, leading to an overall loss of hair.

Medications and therapies mainly treating cancers also lead to hair loss due to death of hair follicles. As for lifestyle and habits, frequent hair treatments may also be a cause of losing hair and eventual baldness. Usage of heat, tight bands and chemicals in dyes play a major role in contributing to the condition.

Image references:

http://hairlosscureguide.com/top-20-leading-causes-of-hair-loss-in-men-and-women-you-may-not-knowl

http://www.trichosyshair.com/c-185-whatcauseshairloss.html

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