Physical activity is a promising strategy for dementia prevention and disease modification. Here, we provide a narrative review of the current evidence from epidemiological and intervention studies on the role of physical activity and exercise in promoting cognitive health in older adults both without and with cognitive impairment. We highlight some of the potential underlying mechanisms and discuss biological sex as a potential moderating factor. We conclude with limitations and future directions for this rapidly expanding line of research.
Keywords: activité physique; adultes âgés; aging; brain health; cognitive health; exercice physique; exercise; older adults; physical activity; santé cognitive; santé cérébrale; vieillissement.