Gray hair is one of the universal signs of advanced age. More likely than not, at some point in your life, your hair will start to go gray. Some individuals can maintain hair color well into their older age, but most do not.
On occasion, gray hairs can be a sign of illness, such as thyroid disease or alopecia areata (a common autoimmune disorder). If you have other tell-tale signs, such as balding patches, let your healthcare provider know. However, don't panic — these are rare and little cause for concern.
Previous studies have not shown a relationship between life span and gray hair, including whether late onset of gray hair predicts longevity. Some research, however, indicates that gray or white hair can be a sign of early heart disease, regardless of age.
Typically, white people start going gray in their mid-30s, Asians in their late 30s, and Blacks in their mid-40s. Half of all people have a significant amount of gray hair by the time they turn 50.
Silvery strands are one of the more conspicuous signs of aging. That said, getting gray hair doesn't necessarily mean that you're closer to the end of your life span than anyone else your age.
Aside from the time investment of a salon session, there's how long it takes to fully transition to gray hair, which is anywhere from six months to a year, Ferrara says.
Grey hair and genetics
The age at which a person's hair turns grey is influenced by the IRF4 gene, and one specific variant (rs12203592) is a marker for premature greying. The IFR4 gene controls that activity of another gene called TYR, which encodes an enzyme that is needed for melanin production.
A new study shows that stress really can give you gray hair. Researchers found that the body's fight-or-flight response plays a key role in turning hair gray. Your hair color is determined by pigment-producing cells called melanocytes.
“Plucking a gray hair will only get you a new gray hair in its place because there is only one hair that is able to grow per follicle. Your surrounding hairs will not turn white until their own follicles' pigment cells die.”
Despite the claims made online and by product marketers, it's not possible to reverse white hair if the cause is genetic. Once your hair follicles lose melanin, they can't produce it on their own. As melanin production slows, your hair turns gray, and then white when melanin production has completely stopped.
For grey hair coverage, we generally recommend that you aim to color slightly lighter than the natural hair color level of your client. In this case we would suggest you go for a color starting in level 6 (Dark Blonde) or 7 (Blonde).
Although the primary cause of premature hair graying (PHG) is considered to be genetic, certain environmental factors also play a role. Trace element deficiencies such as Vitamin B12, Vitamin D3, and calcium may also be associated with PHG.
Vitamin B-12 deficiency is one of the most common causes of prematurely graying hair. Researchers have noted that vitamin B-12 deficiencies are often concurrent with folic acid and biotin deficiencies in people whose hair has started to turn gray early.
Many men and women experience hair loss and early graying when their hormones are no longer balanced. Hormone changes can occur for many reasons such as stress, significant weight loss or weight gain, an illness you've had, or pregnancy.
Vitamins B6 and B12 have also been proven to boost melanin production. Goddard says that vitamin B6, also known as pyridoxine, has been found to trigger the production of enzymes and chemical reactions that boost the metabolism of the hair proteins (keratin and melanin) in the hair follicles.
There are no treatments that are proven to treat (or reverse) gray hair. As researchers learn more about how the graying process happens, they may develop effective medications and treatments for gray hair.
Pollutants and toxins can cause you to grey faster, according to the Library of Congress. These chemicals generate free radicals-or oxidative stress-that damage melanin production and speed hair aging, studies suggest. But once hair grows out of the follicle, it's dead, adds Dr. Day.
Stress can cause hair to gray prematurely by affecting the stem cells that are responsible for regenerating hair pigment.
Just like the hair on the head, the hair on the rest of the body, including the pubic area, is subject to graying. As people age, their skin produces less melanin. Melanin is the pigment responsible for giving skin and hair its color.
False. This isn't necessarily true for everyone, says Sobel. By the time people are in their thirties, most have a few strands of gray hair naturally. While some may continue to gray with each passing year, others may just stall at those few strands of gray for years—or even decades—to come.
It can be inherited from either parent. The color of our hair is determined by the form of hair pigment that we have. The pigment is actually produced along the hair shaft, and there are two main forms of hair pigment. There's eumelanin and pheomelanin.
How often should I touch up grays? If you're dealing with a lot of gray hair, you should touch up every four to six weeks. If that sounds expensive—and time-consuming—that's where at-home coloring is key. With it, you can keep the hair color you know and love—without spending a ton.