A way of stopping hair from going grey may finally have been discovered. The tell-tale sign of ageing is something that many women - and men - have tried to hide for generations.
Now American researchers have found that certain stem cells have the unique ability to move between growth compartments in hair follicles. But they found that as our hair ages, sheds and repeatedly grows back, more of these stem cells become stuck in a compartment called the hair follicle bulge.
These hairs remain here and fail to travel back to their original location in the compartment, where proteins would have helped them regenerate into pigment cells - thus helping hairs keep their colour. The study, led by researchers at the NYU Grossman School of Medicine, observed the physically-aged hairs of mice and found that more and more stem cells became stuck after forced ageing.
