Hair loss may be attributed to a number of causes, including wrong grooming practices and poor diet. However, the most common reason for hair loss, especially among men, is androgenetic alopecia, also known simply as alopecia, or more popularly as male pattern baldness.
Alopecia arises from the effects of a hormone known as dihydrotestosterone (DHT) to hair follicles. DHT is a male hormone, but is also present in women in smaller amounts. This is why hair loss is more common among men.
According to an article in Medical News Today, alopecia is the result of the sensitivity of hair follicles to DHT, which miniaturize, or shrink, the follicles, leading to shorter hair lifespans and disruptions in hair production.
Miniaturization affects a hair follicle’s absorption of nutrients from the capillaries, causing a change in the follicle’s resting and growing stages. Normally, hair grows within 1,000 days and rests for around 10 days. With the follicle all but cut off from its source of nutrients, the growing stage shortens and the resting stage lengthens.
With the change in hair’s growing and resting phases, the follicle and resulting hair start to shrink. Eventually, new hair growths become vellus hair, which is fine, light-colored hair. With DHT still affecting the follicle, the miniaturized hair will eventually fall out and never be replaced.
Scientists believe stopping DHT’s synthesizer, 5-alpha reductase, can prevent alopecia. A number of 5-alpha reductase inhibitors, such as dutasteride and finasteride, has been created to stop or minimize the conversion of testosterone to DHT. However, these products are effective only in mild cases of alopecia involving small hair loss areas.
Hair transplant is the most viable solution to extensive hair loss. This involves harvesting healthy hair from areas on the scalp that are resistant to DHT and where hair still grows, typically the back part.
While costs involved in a hair transplant are considerably higher than topical solutions, less expensive alternatives, such as a hair transplant in Mexico, are available. By travelling a short distance, it is possible to get a full head of hair back at more affordable rates.
A provider of professional hair transplant in Mexico and elsewhere can also address clients’ concerns on sources of donor hair. Donors sites aren’t only limited to the back of the scalp. Men have plenty of DHT-resistant follicles in different parts of the body, possibly an evolutionary countermeasure for their vulnerability to hair loss. Donor hairs may even come from a twin sibling, given that twins share the same genetic makeup.
Trust hair transplant experts like Dr Sara Lea Salas and Baja Hair Center, with its multiple certifications in various anti-alopecic procedures, to address individual concerns and help find appropriate solutions for each.
(Source: What is DHT (dihydrotestosterone)? What is DHT’s role in baldness? Medical News Today, September 26, 2014)