New insights reveal stress may cause grey hair—and reducing stress could help restore natural colour in some cases. Learn more about the science behind it. Experts Shed Light on Why Hair Turns Grey.
A new wave of research and expert advice is helping Canadians understand the causes of grey hair, and in some cases, how to reverse it. While many associate silver strands with aging or genetics, specialists point to stress as a surprising trigger—one that might be managed to bring back the natural colour.
What Recent Findings Show About Stress and Grey Hair
The discussion gained traction after a dermatologist specializing in hair health shared insights on social media, highlighting how stress hormones affect hair pigmentation. In moments of intense stress—such as during exams, breakups, or major life changes—the body’s fight-or-flight response releases hormones like adrenaline and noradrenaline. These can disrupt the stem cells responsible for producing melanin, the pigment that gives hair its colour.
Where the Evidence Comes From
This connection between stress and greying was supported by a 2020 Harvard study. While the study confirmed stress can contribute to premature greying, it emphasized that genetics remain the dominant factor for most people. The research, widely cited by experts, shows that in rare cases, hair colour may return when stress is reduced and stem cells recover.
When Grey Hair Might Signal Health Issues
Though age-related greying is most common, sudden or early greying can sometimes point to medical conditions. Canadian health professionals note that deficiencies in vitamin B12, thyroid disorders, vitiligo, or alopecia areata could be underlying causes. Addressing these conditions with proper medical care may help prevent further greying.
Why Stress Management Could Help
The hopeful news for some is that stress-related greying may not be permanent. According to Dr. Adel, the dermatologist behind the viral video, reducing stress could allow hair’s pigment-producing stem cells to reactivate. “Your stress may be causing you to turn white, but it doesn’t necessarily mean that it’s going to stay there forever,” she explained.How to Approach Grey Hair Concerns
Experts recommend addressing possible health issues first through medical consultation and blood tests. For stress-related greying, strategies like mindfulness, therapy, and lifestyle adjustments could support overall well-being—and potentially your hair colour. Dermatologists also remind the public that plucking grey hairs won’t cause more to grow, and that embracing grey is always a valid choice.
