Especially in the developed countries, the influence of the advances in medicine and technology has increased the proportion of the elderly population in the total population. A similar situation has begun to occur not only in industrialized countries, but also in developing countries. Older and older concepts are controversial. The senescence perception may vary according to collecting, time, educational level, economic situation, as well as sex, physiological and psychological status. Because in some societies old age is regarded as an ordinary process and in others it is seen as a problem. It is expressed that chronological, biological, psychological and social aspects of aging in the doctrine are found in this context and they have come into being in a multidimensional manner. It is not possible to determine a precise age limit. Individual’s biological age, chronological age can vary, as well as health status, sex, environment and working conditions can affect biological age positively or negatively. For this reason, it is difficult to establish a precise beginning for old age. Old age is considered to be a social risk as well as a biological risk because the individual can lose his / her working power partially or completely in this period.