What causes age spots Women's hands and face?

The cause of age spots on hands and faces of the men as a rule, the sun overexposure. The underlying mechanism that caused the melanin clumps probably to do with direct or indirect cellular DNA damage by UV light. We say "probably" because we do not know for sure. Let's look first at some of the causes and then see how to reduce your risk of age spots.

Cause pigment in the skin

Scientists must constantly change their theories as new information becomes available. We know that excessProduction of melanin, or abnormal distribution of the pigment, or both, leading to age-related skin blemishes.

It does not happen all at once, and the process is impossible to document in a laboratory. So understanding of the process is difficult.

It is known that an enzyme called tyrosinase necessary melanin synthesis or manufacture. Lack of or deficiency of the enzyme is the cause of albinism, a complete or partial lack of pigmentation of the skin, hair andEyes.

The pigment melanin is derived from the amino acid tyrosine. One of the non-essential amino acids can be produced in the body from tyrosine, another amino acid called phenylalanine, an essential amino acid.

The melanin-producing cells called melanocytes. Damage to the melanocytes is the likely cause of mottled skin. The current theory is that the damage is a form of photo-aging.

UV radiation causes

This brings us back to the sun as the cause of the ageSpots. Photo-aging is a term used by scientists to changes that occur in the outer layers of skin as a result of UVA and UVB exposure described. The most common source of exposure to UVA and UVB light from the sun.

We know that excessive sun causes prematurely aged appearance. Skin spots, wrinkles, dryness and sagging are among the symptoms of early or photo-aging. We see these symptoms in people who have worked outside most of her life, in people who live in the desertConditions and those who just love the sun.

One could say that taking the non-compliance with safeguards burning one of the causes or photo-aging is. Spotty skin is more common in people who have a history of burning.

Many fair-skinned people burn when they are outdoors for a short time. disappears after burning, they can tan. With regular exposure to small amounts, the tan remains. But in temperate climates, the tan fades in winter. When spring comes, they burnagain and the process begins again.

Whenever the surface of the skin is burnt by the sun, is a small amount of free radicals. If the process is repeated over and over again, there are more and more damage.

Possible cause of age

The skin of a healthy young man has natural mechanisms to prevent and repair small amounts of damage. The mechanisms change with age. The body's own repair takes longer. In some cases, the work is never finished.

One of thethe reasons scientists believe damage caused by free radicals is the cause of age spots and mottled skin is due to the nature of effective treatments. How to reduce your risk of age spots: You can learn more about these treatments in my next article.

Friends Link : everything about life and auto insurance