Researchers have discovered that certain stem cells in the skin of mice and humans can move between growth compartments in hair follicles, but as people age, these stem cells get “jammed” and cease to move, eventually failing to reach the part of the process where pigment is generated. The researchers believe the study raises the possibility of reversing or preventing grey hair by helping these cells to move again. Study senior investigator Mayumi Ito said that it was the loss of chameleon-like function in melanocyte stem cells that may be responsible for graying and loss of hair colour.

Gray hair is a natural part of aging, but have you ever wondered why some people gray earlier than others? The process of hair turning gray can be a mystery, even for seasoned scientists. However, over the years, numerous studies have aim to uncover the answer to this question. In this article, we will look at the different factors that can make hair change color and the science behind it. From genetics to environmental factors, we will explore what makes hair turn gray, and why this process occurs in some people and not others.


Scientists have discovered a potential treatment for reversing or preventing hair from turning gray, according to research published in the journal Nature. Researchers from NYU Langone Health found that certain stem cells responsible for hair color maintenance get stuck in the wrong place as people age, leading to an inability to develop pigment. The team analyzed hair color in mice and discovered that chameleon-like melanocyte stem cells, which move between growth compartments in hair follicles, became immobile as they aged. Researchers suspect that the same phenomenon also takes place in humans, opening up a potential path for reversing or preventing gray hair in people. Study lead investigator Qi Sun said the newfound mechanisms “raise the possibility that the same fixed-positioning of melanocyte stem cells may exist in humans,” and that the research “adds to our basic understanding of how melanocyte stem cells work to color hair.” Professor Mayumi Ito, senior investigator on the study, added that the loss of chameleon-like function in melanocyte stem cells “may be responsible for graying and loss of hair color.” The research team now expects to further investigate their theory and test it on humans.


In conclusion, the process of graying hair is a natural part of aging. It is caused by a gradual loss of pigmentation in hair follicles, which can be influenced by factors such as genetics, age, and lifestyle. Although there is no definitive cure for gray hair, there are various ways to manage its appearance, such as coloring and maintaining a healthy diet. Ultimately, whether we choose to embrace our gray hair or dye it, the journey towards aging gracefully is a beautiful and personal one. So, let us embrace the natural changes that come with growing older, including our unique silver locks.