One reaches the age of 30, has a probability of 10 percent to 20 percent of graying hair each decade.It spend a fact of life that, over time, virtually everyone will gray.Your hair color comes from pigment called melanin. Each hair may contain dark melanin (eumelanin) and light melanin (pheomelanin), which are mixed together to form the many hair color tones among humans. melanocytes When you’re young, stem cells injected pigment called special pigment cells containing keratin. This keratin, a protein, causes your hair and is responsible for giving color. As you age, melanin is reduced, so your hair turns gray and, ultimately, white (this means no left melanin).
Scientists find gene linked with graying hair
What exactly causes the melanin is reduced and becomes gray hair has remained a mystery, until now. An international team of researchers has discovered the first gene linked to gray hair.The study involved an analysis of genome-wide association of more than 6,000 Latin Americans to search related features scalp hair and facial hair genes, including graying, balding , thick beard, monobrow, the thickness of the eyebrow and more). A gene that previously has been linked with blond hair in Europeans turned out to be connected to the gray hair as well and accounted for about 30 percent of gray hair among study participants. The other 70 percent is likely due to factors such as age, environment, stress and more. The researchers plan to find ways to manipulate this genetic pathway to prevent hair graying (including drugs, I would not recommend taking in order to change your hair color).
Kaustubh Adhikari, Ph.D., a post-doctoral researcher at University College London, told TIME:
“We could have drugs that stimulate or inhibit the protein to act and change the amount of melanin in the hair follicles and hair change internally … So once the hair falls out as the way you want, do not have [to] go out and buy dyes. “
your hair has its own “biological clock? ‘
according to Desmond Tobin, Ph.D., professor of Cell Biology at the University of Bradford, England , hair follicles can be regulated by a “clock melanogentic” that eventually the activity of melanocytes cells slows addition, according to the Library of Congress.
” … Tobin suggests that hair graying due to age and genetics, in which genes regulating pigment depletion potential of each individual hair follicle.
This occurs at different rates in different hair follicles. For some people it occurs rapidly, while in others it occurs slowly over several decades. “
It is known, for example, that whites can start going gray in their mid-30s, while Asians tend to go gray start in 30 years .-old African Americans usually do not go gray until age 40
wHAT ELSE Causes gray hair
Other factors why hair turns gray include:.?
• hydrogen peroxide :. hydrogen peroxide is a tool well known to bleach her hair, but many people are not aware that their cells ciliated make hydrogen peroxide, also
as you get older, the amount produced increases, ultimately, researchers believe whitening hair pigment, turning his gray hair and then white. 7
• smoking There is a significant association between consumption of snuff and aging hair.Cigarette smoking it is also linked to premature graying of hair, the appearance of gray hair that occurs before 30 years of age
• oxidative stress: oxidative stress it can be defined as the state in which free radicals (pollution, poor diet, stress, etc.) outnumber your antioxidant defenses (healthy diet). The graying of hair can be an indicator of damage induced by oxidative stress.
Research has also shown that people with premature aging had a higher level of pro-oxidants and lower levels of antioxidants than normal hair.
• vitamin B12 deficiency :. This is also related to premature gray hair, and there is at least one report of pigmentation return to hair after vitamin A deficiency was resolved
is premature GRAY HAIR an indicator health Problems?
is believed to prematurely going gray is largely genetic; if you have relatives turned gray from the beginning, there is a possibility that it could too. Obesity is also associated with premature aging, and there is some speculation that could be an indicator of certain health problems. For example, premature graying of hair can be a marker of significant risk to the state of osteopenia bone. According to a study published in The Journal of Clinical Endocrinology and Metabolism, people with premature aging, but no other identifiable risk factors were 4.4 times more likely to have osteopenia as those without the researchers suggested premature graying.The:
“the association between premature aging and low bone mass could be related to the genes that control the peak bone mass or factors regulating bone turnover.”
thyroid disorders, anemia and vitiligo also have been linked to premature aging, and it has even been associated with an increased risk of coronary artery disease (CAD) in young smokers . According to the researchers:
“premature graying of hair can be used as preliminary by physicians to classify patients at risk of premature CAD, especially in smokers evidence.”
Does stress cause gray hair?
it is commonly believed that stress causes gray hair (and many parents of teenagers or former presidents, whose hair turns gray often during office probably attest to that). Science on this issue has come often dry, save a 2011 study published in the journal Nature and led by Nobel Prize winner Dr. Robert Lefkowitz. That study found chronic stress and frequent activation of the “fight or flight” response to stress leads to DNA damage that can promote not only aging, cancer, neuropsychiatric disorders and miscarriages but also affect genes control the hair pigment.
reveal two possible ‘cures’ for gray hair
Researchers believe they are getting closer to finding a cure for gray hair. Scientists at the Langone Medical Center at New York University, for example, the Wnt protein isolate, which coordinates pigmentation between melanocytes and another type of stem cell that guides the development of hair follicles. When researchers inhibited the Wnt pathway in black mice, they turned gray. They believe that one day the addition of the Wnt protein to hair care products or supplements can “cure” gray hair. Meanwhile, in follow up to the original study linking gray hair to an accumulation of hydrogen peroxide, the researchers revealed that a compound UVB activated called PC-MUS could reverse hydrogen peroxide accumulates and effective “cure” the gray hair . The treatment also works to restore skin color in people with vitiligo. Dr. Gerald Weissmann, editor in chief of The FASEB Journal, which published the study, told Medical News Today:
“For generations, numerous remedies have been concocted to hide gray hair. but now, for the first time, an actual treatment that gets to the root of the problem has developed. ”
The search for a cure for gray hair gray hair assumes that is a problem to be solved. But there is nothing inherently wrong to have gray hair. In fact, from a health perspective you are much better off going gray than using toxic dyes hair. And if you are thinking to embrace the silver locks, now is the perfect time. The so-called “granny hair” is the latest trend, with people paying the halls of large amounts of money to go gray. If you are lucky enough to have won their natural gray, you can get this aspect for free. New York stylist Jan-Marie Arteca Reuters:
“hair grandmother is basically silver hair, any shade of gray hair: steel gray, silver gray, very, very white, platinum-ish, either purple or silver shades … That is the trend. “