Active aging is described in its various facets. Particularly, active aging is discussed by theoretical and conceptual methods; moreover, using the approach that underlines some basic dichotomies and some important convergences: young old/old-old and senior, involution/decline and re-evolution, disengagement and engagement, deterioration/degeneration and neuroplasticity, old and new third age, health psychology and positive psychology, retirement shock and new life, movement and thought, communication and active imagination, creativity and courage, psycho-cultural processes and wisdom, continuing education and search of wellbeing.
Keywords: Aging, active/activity, third age, psycho-cultural processes, health.