|
Post by beth on Mar 3, 2009 3:13:06 GMT
Going gray? Scientists uncover the root cause Finding may lead to better products to prevent, reverse the process Attention parents: It's not your kids that are making you go gray. Your hair is simply building up too much hydrogen peroxide. Bottle-blondes may be a fan, but hydrogen peroxide, which is produced naturally in the human body, interferes with melanin, the pigment that colors our hair and skin. The body also produces the enzyme catalase, which breaks down hydrogen peroxide into water and oxygen. Or at least it does for a while. As we age, catalase production tails off, leaving nothing to transform the hydrogen peroxide into chemicals the body can release. So, as hydrogen peroxide builds up, we go gray, concluded researchers at the University of Bradford in the United Kingdom, who last week published the results of a study in the Federation of American Societies for Experimental Biology's online journal. Reversing the process "This new insight could open new strategies for intervention and reversal of the hair graying process," wrote the study's lead author John Wood, who died last month. The studies were based on analysis of cell cultures of human hair follicles. In addition to lacking catalase, the follicles of gray-haired people also had far fewer hair-repair enzymes, which in turn drove down production of melanin, the scientists found. Genetics play a role as well, causing some people, such as Caucasians, to gray earlier than others, like Asians. Scientists suspect the same mechanism also may be responsible for a condition known as vitiligo, where white spots appear in the skin. "It gives you insight into how we age in general," Gerald Weissmann, professor of medicine at New York University, told Discovery News. "They got the molecular basis of aging down pat." Skin cells produce small amounts of hydrogen peroxide as part of the body's oxygen cycle. The chemical serves to kill bacteria. /snip www.msnbc.msn.com:80/id/29468796/
|
|
|
Post by Liberator on Mar 3, 2009 21:17:24 GMT
Well very little of my hair has gone grey so far but one or two occasionally go coarse and crinkly like Negroid black or white.
|
|
|
Post by beth on Mar 3, 2009 22:18:28 GMT
Gray hair, early, runs in my mother's family. My hair is dark but with a gray (white actually) streak on either side of my face. Looks almost like I've had the color removed professionally. Sometimes I color the streaks, sometimes I let them go. My brother, otoh, had some gray hair in college and is now completely gray/white tho' much younger than I. Guess our hydrogen peroxide build-up is substantial.
|
|
|
Post by drewsmom595 on Mar 6, 2009 0:35:29 GMT
I thought the cause of gray hair was children...at least that's what my cause is.
|
|
|
Post by Scottish Lassie on Sept 18, 2017 0:19:46 GMT
I thought the cause of gray hair was children...at least that's what my cause is. Hi Drewsmom595, It is a genetic condition as we now know. I did think that stress played a part.
|
|
|
Post by Deleted on Oct 9, 2017 9:03:58 GMT
it's called, ,,, getting old !! speaking of which this thread is flipping ancient!
|
|
|
Post by Big Lin on Oct 10, 2017 3:31:48 GMT
Scottish Lassie often responds to posts that are years old! She obviously lives in a different time zone from the rest of us!
|
|
|
Post by blc on Oct 10, 2017 18:47:01 GMT
Time travel!
|
|
|
Post by ladydi on Oct 11, 2017 3:20:01 GMT
I don't care what anyone says, one's lifestyle plays a major effect on how they outwardly appear! Nobody can change my mind on this!
|
|
|
Post by Deleted on Oct 12, 2017 6:27:47 GMT
Scottish Lassie often responds to posts that are years old! She obviously lives in a different time zone from the rest of us! Maybe even talking to her reincarnated self ??
|
|
|
Post by Deleted on Oct 12, 2017 6:29:02 GMT
I don't care what anyone says, one's lifestyle plays a major effect on how they outwardly appear! Nobody can change my mind on this! Yes look at those "children " refugees that were let in here they looked about 40 !
|
|
|
Post by Scottish Lassie on Oct 25, 2017 11:03:13 GMT
Scottish Lassie often responds to posts that are years old! She obviously lives in a different time zone from the rest of us! Why would you say that? If you no longer want a response to dated posts you should either remove them or lock them. I will press recent posts and what I get are posts as far back as 2010-13. It is ridiculous, so I'm not always to blame.
|
|
|
Post by Scottish Lassie on Oct 25, 2017 11:14:05 GMT
Scottish Lassie often responds to posts that are years old! She obviously lives in a different time zone from the rest of us! Maybe even talking to her reincarnated self ?? I don't think that is possible. When I posted another of my user names, it was done in fun to see what would happen. Sometimes girls just wanna have fun.!!!
|
|
|
Post by Deleted on Nov 3, 2017 21:54:55 GMT
Maybe even talking to her reincarnated self ?? I don't think that is possible. When I posted another of my user names, it was done in fun to see what would happen. Sometimes girls just wanna have fun.!!! Caught out lying
|
|
|
Post by Scottish Lassie on Nov 23, 2017 22:10:40 GMT
I don't think that is possible. When I posted another of my user names, it was done in fun to see what would happen. Sometimes girls just wanna have fun.!!! Caught out lying You might lie, but I don't. There are some decent people in this world, but you are not one of them evidently.
|
|
|
Post by Scottish Lassie on Nov 23, 2017 22:16:18 GMT
it's called, ,,, getting old !! speaking of which this thread is flipping ancient! Complaints.!!! Complaints.!!! You DO go on.!!!
|
|
|
Post by Big Lin on Nov 24, 2017 0:32:35 GMT
Can we try and not get into personal insults, please? It's enough to give me grey hair!
|
|
|
Post by Deleted on Nov 24, 2017 12:37:51 GMT
You might lie, but I don't. There are some decent people in this world, but you are not one of them evidently. I don't lie but you certainly do as the above posts reveal your lies for all to see. You are not decent honest or nice .
|
|
|
Post by Deleted on Nov 24, 2017 12:38:27 GMT
it's called, ,,, getting old !! speaking of which this thread is flipping ancient! Complaints.!!! Complaints.!!! You DO go on.!!!
|
|
|
Post by ladydi on Jan 20, 2018 3:14:49 GMT
The cause for grey hair is not only just the process of aging...it's a result of one's lifestyle, stress and health!
|
|