“This new study found that the cells that drive myelin repair become less efficient as we age and identified a key gene that is most affected by ageing, which reduces the cells ability to replace lost myelin.”
Grey matter gets the attention. The white matter wiring and its myelin insulation decide how fast the brain talks to itself. The repair crew slows down with age, and one gene takes most of the hit. A press release about a gene is not a treatment, but it is a target.