Why Does Hair Turn Grey

Why Does Hair Turn Grey?

Gray hair is just another unwelcome part of aging. The Everyday Mysteries website reports that your chance of going gray increases by 10 to 20 percent every decade after you turn 30. With age, the pigment cells in a hair follicle gradually die off. As they do, that strand of hair will no longer grow in with as much color and will show up as more silver, gray or white as it continues to grow. Eventually, if all the pigment cells die, the hair grows in completely gray. The graying of a full head of hair typically occurs over a long period of time. From the time a person notices the first gray hair strands, it can take 10 years or more to complete the process.

The Graying Process By:
Aging
Heredity
Nutrition Problems
Vitiligo
Smoking
Medical Conditions
Genetics and Timing
Other Causes

Genetics is the most common cause of gray hair, but other things can contribute to graying, including a poor nutrition and a lack of B vitamins, particularly pantothenic acid. Anemia, which is the lack of iron in the blood; thyroid problems; and even smoking also can contribute to gray hair. Smokers are believed to gray at an earlier rate because smoking depletes oxygen in the body's tissues. Some treatments for diseases, such as cancer or acquired immune deficiency syndrome (AIDS), can cause hair to turn gray.

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