Vitiligo may also turn the hair white due to melanin cell death or the loss of cell function. In fact, research published in showed a connection between hair abnormalities and thyroid dysfunction. White hair is also common in alopecia areata , an autoimmune skin condition that causes hair loss on the scalp, face and other parts of the body.
When the hair grows back, it tends to be white due to melanin deficiency. There are conflicting research studies on real-life stress, such as that caused by injury, leading to premature graying.
One study from New York University, reported in Nature Medicine , finds that the cells responsible for hair color can be depleted when the body is under stress. Other studies indicate that while stress may play a part, it is only a small part of a bigger picture where disease and other factors contribute. A study in the Journal of the American Academy of Dermatology also demonstrated that smoking is linked to premature white hair in young men.
Chemical hair dyes and hair products, even shampoos, can contribute to premature hair graying. Many of these products contain harmful ingredients that decrease melanin. Hydrogen peroxide, which is in many hair dyes, is one such harmful chemical. Excessive use of products that bleach hair will also eventually cause it to turn white.
If genetics or aging is the cause, nothing can prevent or reverse the process. However, treating graying hair could allow color pigmentation to return if the loss is due to a medical condition. When diet and vitamin deficiencies are the cause of prematurely white hair, correcting these may reverse the problem or stop it from worsening. A diet rich in antioxidants can reduce oxidative stress. Anyone who has white hair resulting from a vitamin deficiency should consume more foods loaded with those vitamins.
For example, seafood, eggs, and meats are good sources of vitamin B, and milk, salmon, and cheese are excellent sources of vitamin D. Smoking has adverse effects on the body and contributes to white hair.
And researchers have found a link between the habit and loss of hair pigmentation. There are plenty of hair dyes on the market that cover white hair, but many of these contribute to premature graying and may cause allergic and adverse reactions. Natural remedies offer an alternative to slow down hair-whitening without harming the body or causing further hair pigment damage.
Curry leaves. The medicinal use of curry leaves goes back centuries. When combined with hair oil and applied to the scalp, curry leaves can slow premature graying. One report in the International Journal of PharmTech Research highlights the traditional use of curry leaves to retain black hair color and even prevent premature graying.
Curry leaves can be purchased at Indian supermarkets, as well as traditional grocery stores. The false daisy or bhringaraj will darken hair and keep it from becoming white early, according to some reports. The juice of the leaves is boiled in coconut oil or sesame oil and massaged into the hair. Indian gooseberry. Also called amla, this is an herbal supplement recognized for reversing premature graying by promoting pigmentation. Its effectiveness is believed to be because the gooseberry is rich in antioxidants and anti-aging properties.
Amla is available as a fruit in Indian grocery stores. Some people go gray at a young age — as early as when they are in high school or college — whereas others may be in their 30s or 40s before they see that first gray hair. How early we get gray hair is determined by our genes.
This means that most of us will start having gray hairs around the same age that our parents or grandparents first did. Gray hair is more noticeable in people with darker hair because it stands out, but people with naturally lighter hair are just as likely to go gray. From the time a person notices a few gray hairs, it may take more than 10 years for all of that person's hair to turn gray.
Some people think that a big shock or trauma can turn a person's hair white or gray overnight, but scientists don't really believe that this happens. Just in case, try not to freak out your parents too much. You don't want to be blamed for any of their gray hairs! Picard and his team began searching for others with two-colored hairs through local ads, on social media and by word of mouth.
Eventually, they were able to find 14 people—men and women ranging from nine to 65 years old with various ethnic backgrounds although the majority were white. Those individuals provided both single- and two-colored hair strands from different parts of the body, including the scalp, face and pubic area. The researchers then developed a technique to digitize and quantify the subtle changes in color, which they dubbed hair pigmentation patterns, along each strand.
These patterns revealed something surprising: In 10 of these participants, who were between age nine and 39, some graying hairs regained color. The team also found that this occurred not just on the head but in other bodily regions as well. Most people start noticing their first gray hairs in their 30s—although some may find them in their late 20s. This period, when graying has just begun, is probably when the process is most reversible, according to Paus. Anecdotes of such a connection are also visible throughout history: according to legend, the hair of Marie Antoinette, the 18th-century queen of France, turned white overnight just before her execution at the guillotine.
In a small subset of participants, the researchers pinpointed segments in single hairs where color changes occurred in the pigmentation patterns. Then they calculated the times when the change happened using the known average growth rate of human hair: approximately one centimeter per month. These participants also provided a history of the most stressful events they had experienced over the course of a year.
This analysis revealed that the times when graying or reversal occurred corresponded to periods of significant stress or relaxation. In one individual, a year-old man with auburn hair, five strands of hair underwent graying reversal during the same time span, which coincided with a two-week vacation. Another subject, a year-old woman with black hair, had one strand that contained a white segment that corresponded to two months during which she underwent marital separation and relocation—her highest-stress period in the year.
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