title: [Brain aging, biological and psychosocial aspect].
abstract: The world population is aging The frontier between physiological and pathological brain aging is somewhat unclear. Pathological aging can cause both mild cognitive impairments and dementias (vascular and Alzheimer). It is important to understand brain aging in order to identify risk factors and develop protective measures. Proper lifetime brain protection could improve quality of life in old age.
authors: Université de Rio de Janeiro, Faculté de Médecine Rua Getúlio das Neves, 22 CEP 22.461-210, Rio de Janeiro, Brasil.
authors: Jorge Alberto
authors: JA
authors: Costa E Silva