Aging

Abstract

The growth of the elderly population has become a main concern. Nowadays, the aged are table to work until late in their lives, occupying jobs that could be available to youngesters coming on to the job market. In contries where social security is a govermment responsability, retirement expenses are beconing more costly. The agring process is a multiple and uneven process that compromise functions that make up the living human body. Each human being endures long enough to reproduce itself and be replaced by the next generation, what explains the existence of a constant average of life expectaney in each biologic species. There is every indication that the aging results from occurences in the cell nucleus that are connected to the production of certain proteins. More recent studies point to the relevance of the liberation and insufficient inactivation of oxidants on the origin and perpetuation of the agring process. The present longevity with no doubt derives of the conquests of medicine an education that allow that the medical progress extends itself to a large proportion of the population.