The majority of gray hair as an indication of old age setting in. However, if you have gray at an early age, remember it is not the that defines the age, it is the .consider
Normally, it is seen that hair begins to gray on the head, then on theand slowly to other places like the chest and the armpits. This process of begins at an average age of 35 years or more and the graying progresses gradually over the years. In some people, the age at which graying starts can differ. For some, graying might begin at an early age and for some, it might begin after 40.
The difference in the age of graying is dependent onand other factors. Before we understand why hair turns gray, it is important to know about the structure of hair to fully grasp the mechanism behind the graying of hair.
Hair is a biomaterial composed of a protein called . Hair grows in in the dermis layer of skin. Hair color in humans is found in the hair follicles because of the presence of two types of , namely eumelanin and pheomelanin. Generally, more the melanin, the hair color.
What Causes Gray Hair?
The dilution of eumelanin and pheomelanin research has shown that a decrease in melanin is due to the decrease of an in the body called catalase. Catalase breaks down buildup in the body. When there is a reduction in the count of catalase, hydrogen peroxide suppresses the of melanin, resulting in the graying of hair.result in graying of hair. To be precise, the melanocytes inside the hair follicles stop producing melanin and this results in graying of hair. Recent
A significant amount of gray hair can appear in younger people too. Thisis called premature graying. Some of the known causes of graying of hair include:
Sometimes, genetics do have a role to play in premature graying of hair. Premature graying can be seen inas young as 12. In some cases, the hair might gray for some time and then turn into black or color as the year’s pass. However, in most cases, graying of hair continues.
Vitamin B12 Deficiency
A vitamin B12 can also be responsible for the graying of your hair. This happens when your body is unable to absorb ample quantities of vitamin B12 nutrient as a result of pernicious anemia. This condition leads to early and faster graying of hair.
This is another factor that leads to oxidative, thereby causing graying of hair.
Hydrogen peroxide is the chemical used in. It is also naturally produced by our body. When this starts interfering with melanin (pigments that give color to and hair), the hair turns gray.
Emotional stress can lead to premature graying of the hair. Research studies have shown that the release of for a period of time had a damaging effect on the , causing it to develop . This is also believed to play a major role in graying of hair.
Premature graying is seen in the presence of certain related to the such as Grave’s disease, Hashimoto’s disease, hyperthyroidism, hypothyroidism, anemic conditions, and can also appear in skin areas affected by leucoderma. Some people with the condition of vitiligo, where irregular white patches form on the skin have been known to develop early gray hair.
An improper diet can also be attributed to premature graying of hair. Lack of -12, iron, and iodine are considered to be the causes for early graying of hair. Lack of intake is also attributed to early graying of hair. Excessive tea & coffee consumption and may also contribute to early graying.
Hair Dyes & Hot Water
Use of chemical hairand extremely hot for hair are also considered to cause early graying of hair.
Every decade after the age of 30, the chances of graying hair stand at 10 to 20%.