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Director / Editor: Victor Teboul, Ph.D.
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Independent and neutral with regard to all political and religious orientations, Tolerance.ca® aims to promote awareness of the major democratic principles on which tolerance is based.

Fifty (or More) Shades of Gray: Gene for Graying Hair Identified

They may not have settled the enduring debate over whether gray hair makes a person look distinguished or just plain old, but scientists have identified for the first time a gene behind graying hair. Researchers said Tuesday an analysis of DNA from more than 6,300 people from five Latin American countries enabled them to pinpoint a gene that affects a person's likelihood of getting gray hair. The gene, called IRF4, is involved in regulating melanin, the pigment responsible for hair...


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