Hair Loss in men
THE SCIENCE EXPLAINED
In men, hereditary male pattern baldness (androgenetic alopecia) causes about 90% of hair loss. For men, in contrast to women, hair loss and shaving their heads as baldness progresses is generally more accepted.
Men tend to develop a receding hairline or baldness in a U shaped area on top of the scalp. Hair on the sides and back generally has closed DHT receptors and will not fall out, hence the transplanting of these hairs when surgery is needed.
THE SCIENCE EXPLAINED
Androgenetic alopecia in men (AGA) is genetically determined and linked to male hormones (androgens) and is usually inherited from either the mother or father. Both men and women produce the male hormone Dihydrotestosterone (DHT), which scientists say is the main culprit in pattern hair loss, causing a shortening of the growth phase by attaching to, and shrinking follicles. Healthy hair is eventually destroyed.
In both genders this shortened hair growth cycle also causes hair follicles to undergo a process called miniaturisation. As hair now remains on the head for a shorter period of time, baby-fine wispy hairs are produced, that do not reach their usual length or width.
