What factors affect the growth rate of nails?

Adult weekly length1-1.4 mm. Too fast or too slow can be a disease. Some people say that people have long hair and long nails. Although there is no exact basis for this statement, the growth rate of nails is really different within one year. In addition, Chinese medicine believes that claws are not only tendons, but also symptoms of liver and gallbladder, so everyone's nails grow at different rates. It is generally believed that the growth rate of nails is not only different from person to person, but also influenced by age, climate, day and night cycle, menstruation, nutrition, gender and other factors.

1. Age

Baby's nails grow about 0.7 mm per week, and the growth rate will increase with age. As adults, their nails can grow by 65,438+0-65,438+0.4 mm per week, but most people will slow down after 30 years old.

2. Weather

At different times of the year and day, the growth rate of nails is different. Generally, nails grow fastest in summer and slowest in winter. Nails grow fastest in the morning and slowest at night. Women's nails grow faster before menstruation and during pregnancy.

Frequent friction

Frequent rubbing can also accelerate the growth of nails, so people who are used to using their right hands grow their nails faster than their left hands, and their fingernails grow 3-4 times faster than their toenails. The growth rate of each nail is not exactly the same. Usually the longer the fingers, the faster the nails grow. For example, the index finger, middle finger and ring finger grow faster than the nails of thumb and little finger.

4. Nutrition

Malnutrition or taking certain drugs may also affect the growth rate of nails. Good nutrition can make nails grow normally. If you are malnourished or have anorexia nervosa, your nails will grow slowly and there will be some lateral grooves called Bo's line.

be in cheerful mood

The growth rate of nails is also related to people's mood. When people are in a happy mood, their nails will look smooth and shiny. This is because physical and mental pleasure can promote blood circulation, increase local blood flow and provide more nutrition for nails.

6. illness

Whether the rapid growth of nails is related to leisure is still inconclusive, but it has been found that the growth rate of nails is closely related to some pathological changes in the human body. For example, when suffering from hyperthyroidism, congenital heart disease, Parkinson's disease and pregnancy diseases, the growth of nails will generally accelerate, while when suffering from hypothyroidism, renal insufficiency, diabetes, malnutrition and other diseases, the growth of nails will slow down.

For the growth of nails, in fact, the most important thing to pay attention to is timely pruning. Because long nails are like a dustpan that only hides evil and practices evil, there are many unknown sources of infection here. Whether you scratch your teeth, pick your ears or pick your nose with long nails, you will bring all kinds of germs and viruses into your body and cause diseases. Remember, only by cutting your nails often can you get rid of the disease.