Is Hair Loss Determined by Age or Family History?

November 15th, 2008

Q: Why do some people have a full head of hair into their seventies or eighties and others start to go bald in their late teens or early twenties?

A: The difference is genetic with the inheritance coming from either side of the family.

Although a person will have the genes his/her whole life, a gene’s expression (also called phenotype) can be quite variable. The factors that cause this variability are still unknown.

Read more about the Genetics of Hair Loss

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Posted by Robert M. Bernstein M.D. on November 15th, 2008 at 6:26 am


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