La reserva cognitiva (RC)es concepto multifactorial y losindicadores que aumentan esta reserva son de diversa índole. Algunos de ellos son la escolaridad propia y delos padres, la formación musical,la actividad lectora-lúdicay la mayor complejidad en la actividad laboral. El estudio de sus componentes permite analizar los factores protectores para el envejecimiento-saludable.Objetivo: describir prevalencia de indicadores de RC en adultos mayores (AM) y su relación con indicadores de alto rendimiento cognitivo y percepción de bienestar Metodología: estudio observacional descriptivo transversal mediante una muestra no probabilística de 133 AM-no-institucionalizados de 60 - 87 años(sin demencia), 90,5% mujeres.Se administró un cuestionario basado en el cuestionario de RC (CRC) de (Rami, et al. 2011), evaluación del estado cognitivo breve (mediante Mini Mental StateExamination y test del reloj) y una evaluación del estado psico-afectivo (mediante indicadores de percepción de bienestar subjetivo mediante escala de PembertonHappinessIndex). Resultados:Se encontró que si bien el 62,4% presentó escolaridad mayor a 6 años, con padres con educación básica 51,9%, más de la mitad de los AM realizaron menos de 2 cursos-formación (57,9%), tuvieron una ocupación-no-formal (50,8%), solo con idioma-nativo (52,6%) y no realizaban actividades lectoras (51,1%) ni lúdicas. Conclusión: En los AM hay mayor prevalencia de indicadores que disminuyen la RC. Palabras clave Reserva cognitiva - Adulto Mayores ABSTRACT COGNITIVE RESERVE INDICATORS IN NOT INSTITUTIONALIZED AGED ADULTS FROM CABA Cognitive reserve (CR) is a multifactorial concept and the indicators that increase this reserve are of various kinds. Some of them are their own schooling and parents, musical training, reading-play activity and the greater complexity in the work activity. The study of its components allows to analyze protective factors for aginghealthy. Objective: to describe the prevalence of CR indicators in older adults (AM) and its relationship with indicators of high cognitive performance and perception of well-being Methodology: transversal descriptive observational study, non-probabilistic sample of 133 AM-non-institutionalized 60-87 years, 90.5% women. A questionnaire was administered based on the RC questionnaire (CRC), evaluation of the brief cognitive state (Mini Mental State Examination and clock drawing test) and an evaluation of the psycho-affective state (indicators of perception of subjective well-being by means of the Pemberton Happiness Index scale). Results: It was found that although 62.4% had more than 6 years of education, with parents with basic education 51.9%, more than half of the MAs had less than 2 training courses (57.9%), they had a non-formal occupation (50.8%), only with native-language (52.6%) and did not carry out reading activities (51.1%) or play activities. Conclusion: In AM there is a higher prevalence of indicators that decrease CR. Keywords Cognitive reserve - Ageing Adult