What is the Longevity Research Library?

The Longevity Germany Research Library curates recent peer-reviewed studies on longevity, nutrition, exercise, sleep, and supplements. Each study is rated by evidence strength: Strong, Moderate, or Preliminary.

How are evidence levels determined?

Evidence levels are based on study type (meta-analysis, RCT, cohort study), sample size, journal impact factor, and reproducibility of findings.

28 studies

Research Library

Peer-reviewed papers from top journals, summarized and graded by evidence strength. Updated Mon, Wed & Fri.

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Loneliness and Social Isolation Are Linked to Faster Biological Aging

Being lonely or socially isolated is associated with measurably faster biological aging. Across over 340,000 UK Biobank participants and 6,300 NHANES participants, higher loneliness and isolation scores correlated with accelerated aging on multiple biomarker clocks. The effect was consistent across three different ways of measuring biological age. Faster biological aging also appeared to partly explain how loneliness connects to earlier death.

Journal of affective disorders·Moderate·Mar 24, 2026

Disclaimer: Research summaries are provided for informational purposes only and do not constitute medical advice. Always consult a qualified healthcare professional before making changes to your health routine.

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