What are reeds?Gray hair is hair that has become white or gray due to loss of pigmentation. This hair discoloration is due to a decrease in specific melanin, which determines, among other things, hair color. Research carried out in 2009 suggests that the appearance of gray hair is due to the absence of an enzyme (MSR) responsible for the reduction of hydrogen peroxide (oxygenated water), so that in the absence of this peroxide, the functioning of other enzymes impairs, so that it stops. melanin produced .Types CanasDepending on when or how they appear, gray hair can distinguish four types of aging: Physiological senescence or aging, is that which is produced by the natural aging of a person. The first area affected is the temples, followed by the back of the head (to reach the entire area). Premature aging: is that which occurs before the age of 20 among Caucasians or before the age of 30 among Blacks. May occur due to various factors. In rare cases, it can occur in childhood. Poliosis: it is a localized aging, that is to say which particularly affects the tufts of hair, eyebrows or eyelashes. This type of gray is usually due to a hereditary process. Some dermatologists consider poliosis to be premature aging. Annular graying: characterized by discontinuity, since the white hairs usually appear loose and scattered at the head, but can also occur in groups or clumps. Causes - Why leave the reeds? causes CanasAs mentioned above, graying (loss of hair color) is produced by the reduction of melanin. But this reduction is due to several factors such as:1. The passage of time or natural aging. Aging is part of the destiny of human beings, and late or early aging is part of our genetics, so as we age we will present an incoming cap...... middle of paper ...... First gray hairs appear in the temples because blood flow is reduced. To get the massage we can go to a spa, hire a person we do or even do it ourselves. Avoid excessive heat: It is essential to be careful when using electrical appliances such as irons, dryers or curling irons. In these cases, it is preferable to use a thermal protection product and to limit its use (in addition to avoiding setting the maximum temperature if it is adjustable). We cannot forget to protect ourselves from direct contact with the sun, especially when we are at the beach or in hot areas, because ultraviolet rays can damage our scalp, so remember to use sunscreen every time you go out . Another important factor is to warm the water in the bathtub, as very hot water can affect the hair follicles. d) Stop smoking. Smokers have been shown to be four times more likely to age prematurely. .