Keratin plays an important role in nail health. It protects nails from damage by making them strong and resilient.
Nails start growing under your skin. As new cells grow, they push old ones through your skin. The part you can see consists of dead cells. That’s why it doesn’t hurt to cut your nails.
The nails you can see are dead and have no feeling. However, a layer of skin under the nails, called the dermis, has
And toenails grow about
Although the myth about nails growing after death isn’t true, there’s a reason it exists. After someone dies, their skin dehydrates and shrinks, making it look like their nails grew.
If you’re right-handed, you might’ve noticed the nails on that hand grow faster than on your left and vice versa. This could be because that hand is more active (see item 11).
Using your hands a lot makes your nails more prone to minor trauma from things like tapping them on a table or using a keyboard. This promotes blood circulation in your hands,
About 10 percent of all dermatological conditions are nail-related. Yellow, brown, or green nails usually mean you have a fungal infection. In some cases, yellow nails are a symptom of a thyroid condition, psoriasis, or diabetes.
Stress can cause your nails to grow more slowly or even temporarily stop growing. When they start growing again, you might have horizontal lines across your nails. They’re usually harmless and will grow out.
Also called onychophagia, nail biting usually doesn’t cause long-term damage. However, it raises your risk of getting sick by spreading germs to your mouth. Damage to the skin around your nails could cause infection, too.
To keep nails healthy, take breaks from using polish or having artificial nails. Using and removing these products can be hard on your nails, so taking a break from them helps nails repair themselves.
Nail growth and other nail characteristics partly depend on your inherited genes. Other factors include your age and health status.
This small sliver of skin at the base of your nail protects the new nail from germs as it grows through your skin. You shouldn’t cut your cuticles. Doing so removes the important barrier that
Primates, including humans, have nails instead of claws as well as opposable thumbs. This gives humans more agile hands that allow us to grasp things better than other mammals.
Your nails give you a picture of your overall health. Changes in your nail color or a disruption in their growth could be symptoms of a medical condition, poor nutrition, or excessive stress. Talk to your doctor if you’re worried about recent changes to your nails.
- Trim your nails regularly, keeping them short.
- If you do have longer nails, scrub the underside of them when you wash your hands. Use soap and water every time and consider using a nail brush as well.
- Sanitize nail grooming tools before each use (and make sure any salon you visit does the same).
- Don’t bite or chew your nails.
- Avoid ripping or biting off hangnails. Instead, use a sanitized nail trimmer to remove them.