For much of modern history, loneliness has been viewed as a deeply personal experience. It was something individuals were expected to overcome through stronger relationships or changes in circumstance. Increasingly, however, researchers are reaching a different conclusion: loneliness is becoming a societal issue with consequences that extend well beyond emotional wellbeing.
That shift is reflected in a major global report released by the World Health Organization Commission on Social Connection. Drawing together evidence from dozens of countries and decades of research, the report argues that social connection should be considered a public health priority alongside more familiar challenges such as obesity, smoking and physical inactivity.
The commission reviewed international epidemiological studies, population surveys and public health research examining how social connection influences health across different age groups and regions. Rather than focusing on a single dataset, the report synthesised evidence from hundreds of previous studies, allowing researchers to identify consistent patterns across countries and cultures. It also considered demographic trends, health outcomes and economic impacts linked to loneliness and social isolation.
One statistic captures the scale of the issue.
According to the report, one in six people globally experiences loneliness, while social isolation affects millions more. Young people between the ages of 13 and 29 reported some of the highest rates, particularly in lower-income countries, challenging the assumption that loneliness is primarily a problem associated with older adults.
The consequences reach far beyond mental health.
Across the evidence reviewed, people with stronger social connections consistently experienced better physical and psychological outcomes. They were less likely to develop cardiovascular disease, stroke and diabetes, while also reporting lower levels of depression and anxiety. Strong social relationships were associated with longer life expectancy, healthier ageing and greater resilience during periods of stress. Conversely, chronic loneliness was linked to increased risks of cognitive decline, poorer physical health and premature death.
Perhaps the most striking finding is that social connection functions as a protective factor across almost every stage of life.
Children with stronger family and community relationships tend to perform better academically and experience fewer behavioural difficulties. Adults with supportive social networks generally recover more effectively from illness and report higher life satisfaction. For older adults, maintaining meaningful relationships appears to reduce the likelihood of cognitive decline while supporting greater independence later in life.
Technology occupies an interesting place within this conversation.
Digital platforms make it easier than ever to communicate, yet the report cautions that connection should not be confused with interaction. Positive online communities can strengthen relationships and improve access to support, particularly for people living far from friends or family. At the same time, excessive screen time, hostile online environments and replacing face-to-face relationships with digital interactions may contribute to feelings of isolation rather than reducing them. The evidence suggests the quality of relationships matters far more than the quantity of messages or followers.
These findings resonate with challenges already visible across South Africa.
Urbanisation, long commuting times, remote working, economic pressure and migration often separate families and communities. At the same time, many people maintain large online networks while spending less time participating in neighbourhood groups, sports clubs, religious organisations or local community activities. Although technology has expanded opportunities to communicate, it has not necessarily strengthened the deeper relationships that contribute most to long-term wellbeing.
The report argues that addressing loneliness requires more than encouraging individuals to socialise more often. It points instead to broader societal changes, including designing public spaces that encourage interaction, supporting community organisations, improving access to education and employment, and recognising social connection as an important component of healthcare policy. Employers, schools and local governments all have a role to play in creating environments where meaningful relationships can develop naturally.
Perhaps the most important takeaway is that loneliness is no longer being viewed as a private emotional struggle affecting only a small group of people. Increasingly, it is understood as a measurable social determinant of health that influences communities, economies and healthcare systems alike.
As governments continue investing in healthcare, education and economic development, strengthening social connection may prove to be one of the most effective interventions available, not because it replaces traditional policy, but because it quietly supports so many other aspects of society.
Source Information
Study Title: From Loneliness to Social Connection: Charting a Path to Healthier Societies
Authors: WHO Commission on Social Connection
Journal/Publisher: World Health Organization
Year: 2025
