Nail Ridges After 40 May Signal More Than Aging—Here’s What Your Body Might Be Telling You
Nail Ridges After 40: What Your Fingernails Secretly Reveal About Your Health We often think of our skin and hair as our body’s health barometers—but your nails? They might be the most underrated health tracker of all. If you’ve started noticing vertical lines or ridges on your nails after age 40, you’re far from alone. …