

About 90 percent of the hair on your head is growing at any given time, in a growth phase that may last as long as six years. The other 10 percent is in a resting phase that lasts a few months, and at the end of that phase the hair is shed. A new hair then grows from the same follicle to replace lost hair, renewing the growing cycle. Hair grows about one quarter to half an inch a month, but that rate of growth slows as people age.
Baldness occurs when certain factors interfere with this natural process of hair loss and replacement, preventing new hair from growing and replacing hair that has fallen out.
Hair loss is a fairly common sign of aging among men. About a quarter of men begin to go bald by the time they're 30, and about two-thirds are either bald or well on their way to baldness by 60. Genetics, nutritional deficiency, drug side effects, or even stress caused by illness may play a role in hair loss:
Consult with your doctor if you are experiencing symptoms of hair loss. If you need a doctor, El Camino Health can help. Visit us online.
This article first appeared in the February 2017 edition of the HealthPerks newsletter.
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