Unknown things about nails

Nails are one of the characteristics that distinguish primates, including humans, and other mammals. They are essentially abraded claws.

Interesting discoveries about nails make you surprised

Scientists believe that primates lose their claws and have larger fingers covered with horns to match their movements. Claws can help grip when climbing on trees, but they are annoying when we hold smaller objects. Therefore, primates have developed so that the fingertips are larger to handle easily.

About 2.5 million years ago, fossil evidence showed that ancient humans used the first stone tool , which was also the time when our ancestors developed so that our fingertips were larger than primates. ancient. Nowadays, people have wider fingertips than other primates.

Nails are easy to be forgotten while they contain lots of interesting information that you may not know.

1. The nails are an average of 3.5 mm per month

According to the American Academy of Dermatology, nails tend to grow faster, averaging 3.5 mm per month while in toenails is 1.6 mm.

2. White spots on nails are not just calcium deficiency

Calcium or zinc deficiency is known to cause white spots on nails, but the fact is that this expression is harmless and does not represent any specific vitamin deficiency. It is most likely that these are signs of previous trauma that leave or pressure the nail's hardware damage.

3. Hair and nails are made up of similar ingredients

Hair and nails are all made up of keratin - a protein and keratin . A diet full of vitamins, antioxidants, proteins and minerals will help your hair and nails stay strong.

4. Men's nails grow faster than women

However, according to the American Academy of Dermatology, this may be the opposite for the case of pregnant women.

5. Nail biting habits indicate anxiety and anxiety

Nail biting increases the risk of skin infections , nail injuries and this practice is considered by experts as a manifestation of mental disorders. In addition, bacteria from the nail will invade your mouth and affect your health.

6. Fully informed nail health body

The overall health of your body can be monitored through nail health. The lack of nutrients changes nail color , and small troughs on nails can be a sign of psoriasis , any strange signs that appear on your nails are warning you to see a dermatologist. .

7. Nails grow in summer faster in winter

Different time periods of the year (same age, genes and other factors) will affect the growth of the nail.

8. Harm from nail polish too much

Like a living tissue, nails also need ventilation on the surface to allow oxygen to be exchanged. Nail polish can increase infections such as viruses, warts or nail fungi. Nails will become dry and pale if you abuse too much paint.

9. Skin problems related to nails

Nearly half of nail disorders are caused by fungal infections (which occur more often in the toenails). Older people tend to have more problems on their skin and nails than younger people.

10. Stress can inhibit nail growth

Stress, fatigue, stress are the factors that hinder your body's energy and nutritional metabolism, helping your skin, nails and hair to be healthy.

11. Effect from nail epidermis

The epidermis of the nail helps you to retain moisture and protect the entry of bacteria outside the environment into the body.

12. The hardness of nails is genetic

The shape of the nail and how it can be developed can be inherited but there are many effects that make the nails dry and weak like cleaning the house, direct contact with chemicals and nail polish. Regular hands and abuse of soap, hand washing water many times / day.

13. Nails need to be nourished

Nails can recover from injuries because they provide stable blood flow, oxygen and nutrients to develop and repair damaged cells. However, injury that occurs below the horny layer can become scarred and change your nail shape.

14. The nail on the hand is more convenient to grow faster on the other hand

According to experts, it is because the fingers on the dominant hand are often used more often and exposed to the elements that grow faster.

15. People who live in areas with higher temperatures, nails tend to grow faster

Because the sun helps your body make vitamin D , your nails will grow quickly.