Loneliness Cuts Men’s Mental Health Years

A Nature Communications analysis of >277,000 UK Biobank participants finds that combined loneliness and social isolation shorten disease‑free life expectancy, with men losing far more years free of depression and anxiety (≈5.8 years at age 50) than women. Lifestyle improvements reduced the physical‑disease penalty of social isolation but did not blunt the mental‑health toll of subjective loneliness. — Shows loneliness is not just a feeling but a measurable public‑health risk — especially for men — implying that mental‑health policy, social support programs, and aging services should target subjective isolation as well as objective social ties.