The Pavilion Crowd's Silver Streaks: What Greying Hair Reveals About the Biology of Ageing
On a summer afternoon at any county cricket ground, silver hair abounds — and each one is a record of a signalling conversation that quietly failed. This article follows the melanocyte stem cell from its niche in the hair follicle to its slow retreat, and explains why the greying follicle has become one of the most instructive models in tissue ageing research.