Gray hair does not like people. True, in some peoples of the earth, gray hair means respect. Speaking in general, the pigment melanin, which is produced in special cells – melanocytes, is responsible for the hair color. When pigment production ceases, and gray hair appears. Several factors can influence this process:
The first factor is aging. With age, the production of melanin naturally decreases. The 50/50/50 principle is known: by 50 years 50% of the population has 50% gray hair. A few years ago, scientists checked this rule and learned more accurate figures. 74% of people aged 45 to 65 years have an average of 27% of gray hair. Usually the first gray hair appears in 30 years or later. If pigmentation is lost earlier, they speak of premature graying.
Genetic factors are in second place. Time of appearance of gray hair and speed depends on heredity. This is confirmed by science. So if your parents have turned gray early, then you, the same fate. Race is also important. It is proved that Caucasians grow gray earlier than Asians and Africans.
The third factor is disease. Gray hair may appear due to problems with the thyroid gland, some autoimmune diseases or progeria. Also sometimes it occurs due to chemotherapy or when taking certain medications.
The next factor is smoking. This pernicious habit has a negative effect on both the skin condition and hair color. According to a study published in 2013, smokers 2.5 times more than non-smokers tend to premature graying.
The lack of vitamin B12 also provokes not only early gray hair, but also hair loss. I’m glad that the loss of pigment in this case is resolute.
Stress is also very bad for our body. Of course, hair turns gray with stress. This fact is known to almost everyone who knows about gray hair. More recently, scientists from the Southwest Medical Center of the University of Texas made an interesting discovery. the authors do not exclude that due to their work in the future there may be a cure for gray hair and baldness. For now, we can only hope that this future will not be too distant.