If you have these lines on your nails after 40, it is a clear sign that.. (Page 2 ) | August 14, 2025
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Main Causes After Age 40

Natural Aging Process

The most popular reason for vertical ridges is simply getting older. As we age, the body’s ability to change skin cells slows down. This also affects nail matrix cells (the base of the nail), causing them to produce keratin unevenly, resulting in ridges.

Dehydration of the Nail

Aging skin tends to be drier, and the same goes for nails. A lack of moisture can make the nail plate more brittle and emphasize any natural ridges. Regular exposure to water, soap, and cleaning chemicals can deteriorate this dryness.

Nutritional Deficiencies

Low levels of crucial nutrients like biotin, iron, zinc, or magnesium can cause weaker, ridged nails. Since metabolism and nutrient absorption may diminish with age, deficiencies become more likely after 40.

Health Conditions

In some cases, vertical ridges may imply health issues such as poor circulation, thyroid imbalance, or even rheumatoid arthritis. If you spot other symptoms like fatigue, brittle hair, or changes in skin texture, it’s worth visiting a doctor.

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When Should You Worry?

While vertical ridges are usually benign, you should draw attention if they come with:

  • Changes in nail color (especially dark lines or streaks)
  • Nail splitting, peeling, or thickening
  • Pain, swelling, or inflammation around the nail

These could be signals of fungal infections, trauma, or in rare cases, melanoma (a serious form of skin cancer that can appear under the nail).

How to Ta.ke Care of Aging Nails

Here are a few simple solutions to decrease the appearance of ridges and maintain your nails healthy:

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  • Moisturize regularly with hand and nail cream, especially after cleaning your hands.
  • Stay hydrated — dry nails are more prone to ridges and breakage.
  • Consume a nutrient-rich diet, centering on vitamins like A, C, B-complex, and minerals such as zinc and iron.
  • Apply gentle nail care tools and avoid excessive filing or harsh manicures.
  • Consider biotin supplements (visit a healthcare provider first).

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