WHO report links chronic loneliness to 870,000 deaths worldwide

A 2025 World Health Organization (WHO) report finds that chronic social isolation is associated with roughly 870,000 deaths each year – about 100 deaths per hour – an impact comparable to smoking fifteen cigarettes daily. The analysis estimates that one in six people globally experiences loneliness, with higher rates among young people and in low‑income nations.

Loneliness and social isolation are linked to increased risk of cardiovascular disease, stroke, depression, anxiety and premature mortality. WHO officials call the issue a public‑health problem and urge governments to act. Initiatives already underway include the United Kingdom’s Ministry of Loneliness and Italy’s trial of “social prescription” models, where doctors can refer patients to community‑based social activities.

Researchers such as Ilaria Lega of Italy’s Institute Superiore di Sanità stress that solid social networks protect both mental and physical health, potentially extending life expectancy by up to 50 %. The Lancet has described the phenomenon as an epidemic, noting that 16 % of the global population reported loneliness between 2014 and 2023, with prevalence reaching 21 % among adolescents aged 13‑17.