Why Your Nails Can Reveal Health CluesFingernails are made of keratin, the same tough protein found in your hair and skin. They grow from the nail matrix, located beneath the cuticle. When your body experiences stress, nutrient deficiencies, or illness, it can disrupt this growth process—leaving visible marks behind.Common factors that influence nail appearance include:AgingNutritional deficienciesPhysical or emotional
Lines on Your Fingernails: What They Might Reveal About Your Health
