The last century handed us a considerably older population, particularly in the developed countries. Life expectancy which in the industrialized countries at the beginning of the 1900s was barely 47 years, has progressively increased, and today it is almost 80 years, with women in an advantageous position. Moreover, the real qualitative leap is represented by the conditions in which aging takes place, conditions that until now were inconceivable for past generations, such as the level of education, the health status, and the economic re sources of aging individuals.