Why does hair turn gray more and faster after the age of 40?

Normally, gray hair due to old age is a manifestation of the body's normal aging process. After the age of 40, the melanocytes in the hair follicles will begin to decrease, and our hair will gradually turn gray.

However, at this stage, there are generally not many white hairs and it is often not easy to notice, but when you are about 50 years old, white hair will increase significantly, starting from the temples and gradually developing to the top of the head and the back of the head.

However, if you have a lot of gray hair when you are young, it is not entirely due to premature aging, it can also be due to a lack of melanin stem cells due to stress and anxiety for a long time, leading to gray hair.

The body lacks trace elements such as vitamin B and iron, which makes hair prone to turning white, this phenomenon of gray hair can gradually return to normal through dietary supplements.

In addition, there are some diseases that lead to the appearance of white hair, such as pernicious anemia, tuberculosis, hyperthyroidism and other common problems, as well as some skin diseases such as vitiligo. In addition, there are also some diseases that can lead to gray hair when treated with drugs, but this case is relatively rare.

To avoid gray hair at a young age, you need to do the following 2 things:

1. Pay attention to hair care

First of all, it is necessary to ensure that nutrients in the vitamin B family and elements such as calcium, iron, and zinc are consumed adequately. As long as you balance your daily diet, it is usually not easy to lead to gray hair due to nutritional deficiencies.

For personal hygiene products, try to choose personal hygiene products from reputable manufacturers, reduce poor quality shampoo products, reduce hair dyeing and perming... which can damage the hair and also help reduce the risk of gray hair.

2. Pay attention to sunscreen

Many people do not understand why sunscreen can reduce the risk of gray hair. Normally, when the skin is exposed to a lot of ultraviolet rays, the melanin in the skin will increase, making the skin darker.

But in fact, if exposed to a lot of ultraviolet rays, in addition to the melanin produced by melanocytes, the melanocytes in the hair follicles will also move into the skin, causing the hair to turn white. Therefore, to prevent gray hair, you also need to do a good job of sun protection.

Under normal circumstances, hair color will gradually fade after the age of 40, and some gray hair is also normal, not premature aging. The age when many gray hairs appear on the human body is around 50 years old, at this time we can also feel that the body is clearly aging.

If your hair turns gray at a young age, you must go to the hospital for diagnosis and timely identification of the factors causing gray hair for complete treatment, avoiding gray hair caused by certain diseases that affect your health.