Gray hair isn’t just a sign of age – new science hints it could help keep skin cancer at bay. Scientists at the University of Tokyo studied mice to understand what happens when hair‑follicle stem cells (the cells that keep hair producing pigment) face DNA damage from everyday stress. Their findings show a surprising link between turning gray and fighting melanoma, the deadliest form of skin cancer.
Hair gets its color from melanin, made by specialized cells called melanocytes. Over time, the melanocyte stem cells that live in the hair follicle lose their ability to produce pigment. These stem cells can either “differentiate” into pigment‑producing cells and leave the system (making hair gray), or they can keep dividing. The second option can allow abnormal, cancer‑like cells to grow, potentially leading to melanoma.
“Gray hair and melanoma aren’t unrelated; they’re two possible outcomes of how stem cells respond to stress,” explained lead author Professor Emi Nishimura. “Choosing to differentiate into gray hair may protect the body from developing harmful tumors.”
While the research does not say gray hair guarantees cancer protection, it reveals a natural defense mechanism. Scientists emphasize more studies are needed to fully understand the link between graying and skin cancer risk.
Why this matters
Melanoma is the most dangerous skin cancer because it can spread quickly through the bloodstream and lymphatic system. The average age of diagnosis in the U.S. is 66, but young women under 30 also face a high risk. Factors that increase melanoma risk include:
* Male gender
* Multiple moles or a strong family history
* Sunburns in childhood, especially if it blistered
* Extensive outdoor activity and sun exposure
If you’re noticing your hair going gray, it might be your body’s way of protecting you from potential skin cancer. However, staying alert to skin changes and protecting yourself from the sun remains essential.
Keep your skin healthy and work with your doctor to monitor any unusual moles, and remember: gray hair may be more than a stylish change—it could play a role in your body’s defense system against cancer.
Source: New York Post
Stay informed on all the latest news, real-time breaking news updates, and follow all the important headlines in world News on Latest NewsX. Follow us on social media Facebook, Twitter(X), Gettr and subscribe our Youtube Channel.
