What are nails? Our nails are little miracles that enable us to use our fingers more effectively. Nails are specialized outgrowth of the skin tissue which protects the hypersensitive nerve endings below the nail and on the fingertips. (We all know that "Cut to the quick" means "Ouch!") The nail, much like hair, consists mostly of proteins, plus small amounts of calcium, phosphorous and trace metals. Also, like the hair, most of the nail is made of layers of dead cells together with tiny quantities of moisture and fat. The moisture and fat decrease with age, which is why nails peel more as we get older. The live, growing portion of the nail (the matrix) is at the edge of the cuticle and just behind it.
The cells of the nail consist of keratin, a fibrous protein whose cells can stretch when exposed to water, becoming soft and opaque. (Watch out for those long lovely tub soaks!) Conversely, when nails are subject to harsh detergents and polish removers, they can become brittle. And constant swelling and shrinking of the keratin can weaken the bonds which hold the living part of the nail together.
What affects nail growth? Nails generally take six months to fully grow out. They grow faster in childhood (but stop during childhood diseases), and slow down at about age twenty-five. Nails grow fastest in hot weather, with the body's increased metabolism, and slowest in winter, when they also become more brittle. They speed along during pregnancy, but slow down during periods of serious illness, nervous shock and even viral infections. The thumbnail grows the slowest, while the nail of the middle finger seems to grow the fastest, as do all the nails on the hand you use the most. Nails thicken with age, but activities like typing, buffing, piano playing and nail biting (!) make them grow faster. Contrary to popular opinion, nails do not continue to grow after death. It just looks that way because the surrounding skin tissue shrinks.
Nail problemsChat with our AI personalities
Nails can absorb water, causing them to swell and become softer. This is because the water penetrates the nail plates, making them more flexible and prone to damage. To prevent this, it's best to limit prolonged exposure to water and to use moisturizer to keep your nails hydrated.
Nails do not dissolve. They react with some liquids which may cause their conversion to soluble substances, or they may be converted to insoluble substances which crumble away.
It is not safe to drink water that has rust from nails in it as it can contain iron oxide which may be harmful to your health. It is recommended to drink clean, filtered water for your hydration needs.
it is caused by a chemical reaction with metal and water
it is because of the oxygen
Yes, saltwater can accelerate the rusting process of nails. The salt in the water increases the electrical conductivity, causing the nails to corrode more rapidly when exposed to moisture.
Water is considered soft when it contains low levels of calcium and magnesium ions. These ions are responsible for the hardness of water by forming scale buildup. Water softeners can remove these ions through ion exchange or other methods to make water soft.