A Study Says Gray Hair May Be Reversible 1.7%
Popular Mechanics - By Tim Newcomb - 7/6/2026, 6:54 PM
Optimism Bias 13.8% - Framing Effect 8.5% - Biased Writer Voice 8.1%
Here’s what you’ll learn when you read this story:A 2023 mouse study linked graying hair to melanocyte stem cells losing their unusual ability to move between compartments inside the hair follicle. When too many of those cells become lodged in the follicle bulge, they may stop producing the pigment cells that give new hair its color. New... more