Tuesday, November 24, 2009

Information on hereditary greying of hair?

the greying started from 7 years of age



Information on hereditary greying of hair?

Gray Hair



name Timothy James C.



status student



age 11



Question - Why do peoples' hair turn gray?



-------------------



Timothy,



Speaking only for myself, as an older ellow with white hair, it might



get that way because bright young fellows like you ask Newton scientists



so many hard questions.



Seriously though, hair is alive only where it is attached to the scalp



in the hair follicle. If one has an inherited tendency for graying hair,



in time the pigment-making cells cease functioning. When that happens,



the protein of which the hair is made reverts to its natural color which



is rather white.



Sometimes emotional stress or other trauma can cause the pigmentation



mechanism to be suddenly alters. The result is the oft mis-characterized



"turning gray overnight." Interruption of pigmentation almost always



occurs gradually -- not overnight



Thanks for the thought-provoking question.



Regards,



ProfHoff 319



======================================...



Hi, Timothy !!!



The mixture between colours white and black result



gray. The hair turns white because no more pigments



are produced by the cells. It depends upon genetics



how soon you will have white hair. Sooner or later everyone



will have white hair...and sooner or later, everyone will die.



But you have still a lot of time. Enjoy it !!!



Alcir Grohmann



Beschaffung SAM

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