Loneliness, social isolation and cardiovascular risk

Loneliness and social isolation are increasingly being acknowledged as risk factors for both physical and mental health problems. Recent statistics demonstrate that loneliness and isolation are on the rise internationally, to the point of being classed as an epidemic. In this paper, the authors outline some of the recent research linking loneliness and isolation to significant chronic diseases such as cardiovascular disease and type II diabetes; mental health disorders such as anxiety and depression; cognitive disorders and dementia. Isolation has also been shown to compromise recovery after acute cardiac events, being associated with increased hospital readmission and premature death. Indeed, isolation has now been identified as a risk factor equivalent in effect to traditional risk factors such as smoking, hypertension and obesity. While distinguishing between objective and subjective indicators of isolation, the authors highlight the complexity of this phenomenon, both in terms of definition and measurement, as well as the interplay between subjective and objective indicators. Important clinical implications for health professionals working with cardiac patients are also proposed, in terms of screening for isolation, and possible interventions to support patients at risk of isolation. The aim of the current article is to emphasise the importance of acknowledging loneliness and isolation as key risk factors requiring urgent attention, both in research and in clinical practice.