What Causes Gray Hair?

Answer

There are very many factors that cause people to have grey hair as they age. They include factors such as medical or health problems like vitamin B-12 deficiency, hereditary factors, smocking, emotional stress or shock and other causes such as pollution and exposure to ultra violet sunrays.
Q&A Related to "What Causes Gray Hair"
The Process of Graying Hair. In actuality, there is no such thing as gray hair. All hair is either white or colored with varying shades of pigment or melanin. The melanin for hair
http://www.ehow.com/how_5063931_causes-graying-hai...
The reason hair goes gray is because of the loss of melanin, which is the pigment in our hair (and skin) that gives it it's colour. Melanin is produced by cells that are called melanocytes
http://wiki.answers.com/Q/What_causes_grey_hair
As we get older, the pigment cells ( which gives us color ) in our hair follicles
http://www.chacha.com/question/what-is-the-cause-o...
Dry hair can be caused by the ends being damaged by heated products like straighteners or hair tongs. You need to make sure that you get regular trims to help get rid of the dead
http://www.ask.com/web-answers/Health/Diseases/wha...
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Ask.com Answer for: what causes gray hair
What Are the Causes of Graying Hair?
Gray hair is considered a sign of growing older. It is true that nearly all human beings develop gray hair as they age. However, gray hair is not exclusively associated with aging. Many people begin to show significant graying hair as early as their 30s.... More »
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