A new report by the World Health Organization (WHO) has found that one in six people worldwide is experiencing loneliness—an emotional and social crisis with far-reaching health and societal consequences. The report, released by WHO’s Commission on Social Connection, highlights the urgent need to address rising levels of social isolation, particularly among young people.
According to the analysis, approximately 20.9% of adolescents and 17.4% of adults under 30 report feeling lonely, compared to 11.8% of those over 60. Among all age and gender groups, teenage girls emerged as the most affected, with nearly one in four (24.3%) saying they feel lonely.
The findings are based on global surveys and health data, and they reinforce growing concerns that loneliness is becoming a widespread public health issue. The commission estimates that loneliness and social isolation are linked to nearly 871,000 deaths annually, increasing the risk of serious health problems such as stroke, heart disease, type 2 diabetes, cognitive decline, and mental health disorders.
Dr. Vivek Murthy, former U.S. Surgeon General and co-chair of the commission, said the issue is driven by a complex mix of factors. “Poor physical and mental health, social marginalisation, and increasingly excessive use of digital media—particularly among youth—are all contributing to a sense of disconnection,” he said during a press briefing.
While men and women overall report similar levels of loneliness, the WHO distinguishes between being alone and being lonely. Social isolation refers to a lack of sufficient social connections, while loneliness is defined as the “painful feeling” that arises when someone’s social relationships do not meet their needs or expectations.
Data on social isolation remains limited, but WHO estimates suggest that up to one in three older adults and one in four young people are socially isolated.
Despite the grim outlook, the report underscores the positive impact of strong social connections, which can extend lifespan, reduce disease risk, and improve overall wellbeing.
The WHO is urging national governments to treat loneliness as a public health priority and invest in programs that strengthen social bonds. “For too long, we have not recognised the importance of social health,” Murthy said. “That must change.”
Some countries have already taken action. In Sweden, the government has launched a €30 million initiative targeting loneliness, particularly among elderly citizens and youth. As part of the program, teenagers aged 16 to 18 will receive “activity cards” to access sports, arts, and social events—on the condition that the activities involve others.
“This is not just a problem for those who are lonely,” said Jakob Forssmed, Sweden’s Minister for Social Affairs and Public Health. “This is a problem for the whole of society.”
The WHO’s call to action aims to spark global awareness and policy shifts that prioritise human connection in an increasingly digital and disconnected world.
