Aging Changes in Hair and Nails
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Hair Follicle of Young Person
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Hair color is caused by a pigment (melanin) that is produced by the hair follicle. With aging, the follicle produces less melanin.
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Aging Changes in Nails
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The nails change with aging, growing more slowly, and becoming dull and brittle. The color may change from translucent to yellowed and opaque. Nails, especially toenails, may become hard and thick and ingrown toenails may be more common. The tips of the fingernails may fragment. Sometimes, lengthwise (longitudinal) ridges will develop in the fingernails and toenails. This can be a normal aging change. However, some nail changes can be caused by infections, nutritional problems, trauma, and other problems.
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