Science has uncovered several causes of hair loss in men and women.
There are also many myths associated with hair loss. Some people explain
their loss because they wear a hat too often, or because of stress. Some
people think their diet causes them to lose hair or that washing their
hair too much can cause loss. None of these things usually contribute
to hair loss, so let's take a look at what we know does.
The most common cause of hair loss in men and women is androgenetic
alopecia. This is a big fancy medical term for pattern hair loss. So
let's take a look at what causes male and female pattern hair loss. Male
pattern loss is indicated by loss of hair on the top of the head, while
female pattern loss is usually in the form of a diffused loss over the
entire scalp, or thinning everywhere. There are men that exhibit a female
pattern and there are women who exhibit a male pattern. The type of pattern
you may have has been predisposed genetically at birth.
Our Body's produce a small enzyme called 5-alpha reductus. This enzyme
is present in our blood stream and serves several useful functions. When
the 5-alpha reductus comes in contact with the male hormone testosterone
the two bond together forming a secondary hormone called dyhydrotestosterone.
This chemical builds up in the follicle causing it to miniaturize. As
the follicle gets smaller the hair that grows from it gets thinner and
finer resulting in the appearance of less hair. Keep in mind all the
hair you had is still there it just becomes so small that it can no longer
be seen.
When you are conceived a genetic defect in the original DNA causes some
of the 5-alpha reductus enzymes to be placed in some of the hair follicles
on top of your head. These are the follicles that will eventually fail
to grow hair.
There are several medical treatments available at this time that have
the potential to stop the miniaturization of the follicle by either blocking
the production of DHT in the follicle or by reducing the amount of DHT
the body produces. These treatments are discussed in detail on the medical
treatment page.
Stress Related Hair Loss
Stress can cause hair loss but it is generally
a temporary loss. Normal everyday stress usually does not cause excessive
loss. However, an unusually
stressful event can cause some noticeable hairloss.