Going
Bald - Our
hair actually acts as a "buffer", protecting us from
the environment,
assisting in the dissipation of body heat (to
keep our temperature normal) and helps act as a barricade against
infection.
Evidence
suggests that hair loss may be mainly caused by
dihydrotestosterone, or DHT; a potent hormone that is closely
related to testosterone. Body hair normally emerges from tiny
pockets of follicles embedded in the skins epidermal layer.
When you are born, you have about 100,000 scalp follicles.
This
number generally remains constant throughout your lifetime. If
you are genetically predisposed to thinning hair or baldness (androgenetic
alopecia, or AGA), however, DHT kills the scalp follicles and
they produce short, fine, non-pigmented (white) hair, if any,
instead of the normal long, thick, strands of your natural hair
color. About 50% of people, both men and women, will experience
AGA by the time they reach the age of 50.
It
is possible to treat the damaged hair follicles. According to a
review published in the New England Journal of Medicine, the
prescription drug Finasteride may slow or reverse follicle
shrinkage by blocking an enzyme that converts testosterone into
DHT. However, it does have some undesirable side effects.
Women
who are or may become pregnant should not even touch the drug
because it can cause deformities in male fetuses. In men,
finasteride has been known to cause decreased libido and
erectile dysfunction.
Surgery,
including hair grafts and scalp reduction are more
drastic alternatives. Clearly the use of natural substances
would be of extreme benefit to both men and women.