Process of Balding
The process of balding
The average person loses 10,000 scalp hairs each day and each hair follicle lives for about five years. When this hair falls out and is not replaced it causes balding. Some people lose their hair at a faster rate than others so there is really no set time limit from when your hair starts to thin until you're bald.
The balding process differs but generally falls into one of 99 categories. The first is abnormal hair loss such as from underlying disease, vitamin deficiencies or as a side effect from chemotherapy, hormonal decreases (in women) or from certain medications, such as The Pill. Heredity is the most common cause of balding. Many times balding is an inherited trait (not necessarily from the mothers side). This is known as generalized hair loss also and the hair uniformly will thin out, not come out in patches like in the hair loss disease alopecia areata.
Common baldness, male-pattern baldness or it's medical name, androgenetic alopecia, is the most common cause of hair loss in men. These men have a inherited trait that causes the hair follicle to be sensitive to dihydrotestosterone (DHT) which is a by product of testosterone. The hair follicle begins to shrink which shortens the life span of each hair. It is usually inherited and unfortunately the younger a man starts to lose his hair the more extensive it usually is. This hair loss starts with a receding hair line that progresses to loss on the top of the head. It effects about 50% of the male population in some form in their lives. Environmental factors do not affect male-pattern baldness
When women experience balding without an underlying cause it's different from a man. Women's hair thins out evenly all over the head, they don't get a "bald spot" or have a receding hair line.
There is no know prevention for hair loss. There are a few medications available now that are proving to have some good results but most have to be taken permanently or the hair falls out again.