Why do men lose their hair more often than women?

The absence of hair, or just a few hairs at the apex and the wide band that surrounds it on both sides and back, is called a pattern of baldness in a man. This is the schedule by which men lose their hair as they age. This schedule also affects women. They start to lose their hair later than men, and usually less noticeably. But when it happens, the pattern is the same – mostly from the top. Hair loss is normal – everyone, even people with lush, thick hair, lose about 50 to 100 hairs a day. Most people are lucky, because when old hair falls out, they have completely new hair instead.

Each hair goes through stages of development, like some growing plant. The anagen phase is a growth phase, lasting five years or more (the hair will grow up to 75 cm if not cut). For the next two to three weeks the hair is in a transient (catagenic) phase, when the growth rate gradually decreases. Finally, the hair enters the telogen, ie. the resting phase. The hair has stopped growing and is simply waiting to fall out. It can take several months for the newborn hair to squeeze the old resting hair out of her follicle. That’s where the 50 to 100 hairs that fall off daily originate. Stress and illness can impair this normal process in the skin, causing significant hair loss. Also, when someone is severely lacking in vitamins because they are not getting enough nourishment or because of their poor quality, the hair may start to grow sharply.

The pattern of baldness is a natural phenomenon that comes with age. In fact, the number of men with a certain pattern of baldness can be estimated based on age. Thus, 25% of 20-year-olds have thinned hair at the apex, and 80% of 80-year-olds are partially bald. Those same hormones that make a boy a boy play a role in the adult male’s baldness. As the boy reaches adulthood, certain genes, which he inherited from the family, become involved and command the hair follicles to make an extra amount of a special enzyme. This enzyme converts the testosterone hormone into another called dihydrotestosterone (DHT). Due to too much DHT, the hair follicles appear to be gradually shrinking. The assumption is that this happens because DHT somehow signals the immune system to invade its own hair, as if every hair follicle has become a foreign body. Thus each strand is thinned and its growth phase shortened. Eventually, small areas of rare, short fluff appear in the area where strong strands once flourished. These feathers easily fall away from everyday wear and tear, resulting in the appearance of a spreading bald.

The body of women also produces male hormones, but in a very small amount. Therefore, if they inherit bald genes, their hair may also be thinned. However, since their levels of male hormones are lower, fewer women have a male pattern of baldness, and they are usually not nearly as obvious.

Curiosity: Contrary to popular belief, shaving your head does not make your hair thicker or grow faster.

What do you think?

Written by michael


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