Site about health and medicine. Very quality encyclopedia where visitors can find everything they are interested in, over 2000 posts and keywords content for every topic.Website is made to satisfy every need of visitor who is interested for anything about health. Skin aging is marked by numerous changes in the structure, function and response to environmental factors. The skin is perhaps the most visible effects of aging. According to current knowledge about aging is seen as a right, chronological aging, which is a general term, the inevitable changes that result over time, as photoaging, which is a consequence of exposure to sunlight, which is universal and inevitable.