The human body often provides subtle signals about its condition, and one area that many people overlook is the fingernails. If you have looked closely at your nails after the age of 40, you may have noticed thin vertical lines extending from the cuticle toward the tip of the nail. These ridges can appear gradually and become more visible over time.
For most people, vertical nail ridges are completely normal and are considered a natural part of the aging process. Much like wrinkles appear on the skin or hair gradually turns gray, nails also undergo changes as the body ages. The nail growth process may slow down, and the texture of the nail plate can become more pronounced.
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Experts explain that nails are made primarily of keratin, the same protein found in hair and skin. Over time, the body's ability to produce and distribute nutrients efficiently may change, which can influence nail appearance. As a result, vertical ridges may become more noticeable even in otherwise healthy individuals.
However, while aging is the most common explanation, certain lifestyle factors can also contribute to the appearance of nail ridges. Dehydration is one example. Nails, like skin, can become drier with age. Insufficient fluid intake may make ridges appear deeper or more visible. Frequent exposure to cleaning products, harsh soaps, or excessive hand washing may also affect nail texture.