How Do Human Nails Grow

Human nails are made of a tough protein called keratin. Keratin is also the main component of hair and skin. Nails grow from the nail root, which is located under the cuticle. The nail root is made of living cells that divide and produce new nail cells. These new nail cells are pushed forward by the cells behind them. As the nail cells move forward, they flatten and harden. This is how nails grow.

The rate at which nails grow varies from person to person. Fingernails typically grow about 3 millimeters per month, while toenails grow about 1 millimeter per month. Nails grow faster in children than in adults. Nails also grow faster in summer than in winter.

There are a number of things that can affect the growth of nails. These include:

  • Age: Nails grow more slowly as people age.
  • Health: Diseases such as anemia, thyroid problems, and psoriasis can slow down nail growth.
  • Medications: Some medications, such as chemotherapy drugs, can also slow down nail growth.
  • Nutrition: A diet that is low in protein or biotin can also slow down nail growth.
  • Trauma: Injury to the nail bed can also slow down nail growth.

Nails can be damaged by a number of things, including:

  • Biting: Nail biting is a common habit that can damage the nails.
  • Peeling: Peeling the nails can also damage them.
  • Trauma: Injury to the nails can also damage them.
  • Chemicals: Exposure to harsh chemicals, such as those used in nail polish remover, can also damage the nails.

If you have concerns about the growth or appearance of your nails, you should see a doctor or dermatologist.

Here are some additional tips for healthy nails:

  • Keep your nails trimmed and filed. This will help to prevent them from breaking or splitting.
  • Use a mild soap and warm water to wash your hands. Avoid using harsh chemicals, such as nail polish remover, as these can damage your nails.
  • Get enough protein in your diet. Protein is essential for healthy nail growth.
  • Take biotin supplements. Biotin is a B vitamin that is essential for healthy nail growth.
  • Avoid biting your nails. Nail biting can damage the nails and make them more susceptible to infection.
  • See a doctor if you have any concerns about the growth or appearance of your nails.
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