ARTICLE/NEWS

Nail Growth 2010-01-22

Nail Growth

The nail originates in the matrix as part of the epidermis, or outer layer of the skin. It hardens and thickens through a process called keratinization, where it becomes less firmly attached to the nail bed. As growth continues, the nail becomes thinner and again fixes itself firmly to the nail bed, taking on a pinkish tone. Depending on individual growth rate, it takes from 3 to 5 months for a nail to grow completely. Nails generally grow faster and stronger in summer than winter, and grow faster on the right hand of right-handed person, the left hand of a left-handed person. The growth rate is also more rapid during pregnancy. "You are what you eat" is a popular saying, and certainly one's fingernails reflect one's diet. Dietary deficiencies not only prevent nails from growing normally, but also can cause weakness and brittleness, two of the most exasperating problems.

Vitamins, calcium and minerals are particularly important to the growth and maintenance of strong, healthy nails.

 

 

Did you know?

 

The average growth rate for nails is .7 mm (.02 inches) per week depending on age, time of year, activity level, and heredity.

 

Nails grow more rapidly in the summer than in the winter. Human nails grow in response to the sun's light which is stronger in the summer months.

 

Fingernails grow faster than toenails because they are exposed to more light than toenails.

 

Nails on a person's dominant hand (right vs. left) grow faster because trauma to the nails also makes them grow faster. Since we use our dominant hand, finger- nails on this hand receive more stimulation and therefore grow that much faster.

 

Men's nails grow more quickly than women's, except possibly during pregnancy and old age.

 

Nail growth is affected by disease, hormone imbalance, and the aging process. 

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