A Study Says Gray Hair May Be Reversible 12%
Popular Mechanics - By Tim Newcomb - 7/6/2026, 6:54 PM
Post Hoc (False Cause) 24.3% - Appeal to Authority 19.7% - Pessimism Bias 11.5%
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