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Explaining Thinning Hair In Men


Hair loss (or thinning hair) is most common amongst men with 95% of all baldness caused by Androgenic Alopecia, otherwise known as Genetic Male Pattern Baldness. 25% of all men begin balding by the age of 30 and by 50 years of age that figure is 50%.

Androgenetic alopecia
Androgenetic alopecia is a well-defined pattern of hair loss, where hair is lost above both temples and also on the crown of the head and can eventually progress to complete baldness.

Androgenetic alopecia is caused by a high concentration of the hormone called dihydrotestosterone or DHT. DHT is a hormone which mainly aids in sexual and hair growth during puberty.

It is a by-product of the interaction between the testosterone hormone and the 5-alpha reductase enzyme. As aging starts, higher concentrations of DHT will be created which will binds to the hair follicles and disrupts the normal hair cycle. This leads to a shorter growth cycle, a longer resting phase, thinner hair growth and a faster rate of hair shedding, leading to noticeable hair loss.

Alopecia Areata
Alopecia Areata is another form of hair loss, which unlike androgenic alopecia, is not an inherited condition. It is believed to be caused by an abnormality in the immune system, where for unknown reasons; the immune system attacks the hair follicles instead of protecting them.

This disrupts the normal growth of hair. Hair loss, in alopecia areata, occurs in patches rather than in a distinct pattern.

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