The Stem Cell Research and the Aging of Brazilian Population.

The developing countries are experiencing a shift in the population profile, faster than that experienced by developed countries, especially due to the consolidation of health practices and technological advances. These social changes also imply new socioeconomic models, able to escort social demands caused by the growth of the elderly population and the decrease in young economically active population. Several countries seek for actions that do not marginalize the elderly, and invest heavily in new technologies to ensure health access and active participation of this group in society.