Author:

• ILKA NICÉIA D’AQUINO OLIVEIRA TEIXEIRA - Teixeira, I.N. - Curitiba, PR - Mestre em Gerontologia (Unicamp) - Terapeuta Ocupacional (UFMG) - Acadêmica de Enfermagem (UFPR) - <ilkateixeira@netscape.net>

Thematic Area:

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Abstract:

The article reviews the major biological theories of aging, and discusses the most relevant mechanisms to explain the aging process. It begins with the evolutionary theories, explores the molecular-cellular mechanisms, and presents the perspective of the systemic theories. The complex etiology of aging is a challenge to the researchers. The knowledge on that phenomenon develops towards an integrative approach.
Key-words: biology, aging, cell aging, cell death, aged.

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