Purpose of review: We systematically reviewed the available observational evidence on the association between long-term exposure to residential outdoor greenspace and health at older age and rated the evidence as sufficient, limited, or inadequate.
Recent findings: We identified 59 studies, ranging from poor to very good quality. The health outcomes included mental health (N = 12, of which three were longitudinal studies and eight were rated to be of good quality), cognitive function (N = 6; two longitudinal studies, five of good/very good quality), physical capability (N = 22; five longitudinal studies, six of good/very good quality), cardiometabolic risk (N = 9; one longitudinal study, five of good/very good quality), morbidity (N = 11; three longitudinal studies, six of good/very good quality) and perceived wellbeing (N = 9; all cross-sectional, two of good quality). The evidence for a beneficial association with greenspace was rated limited for morbidity and inadequate for mental health, cognitive function, physical capability, cardiometabolic risk and perceived wellbeing. The reviewed studies provided inadequate/limited but suggestive evidence for a beneficial association between greater long-term greenspace exposure and healthy ageing. This review highlights the need of longitudinal studies that assess the association between long-term greenspace exposure and the trajectory of objective indicators of ageing.
Keywords: Ageing; Elderly; Greenspace; Health; Natural environment; Park.