Thymus health is a predictor of lifelong well-being and immunotherapy effectiveness

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18 March 2026 Thymus health is a predictor of lifelong well-being and immunotherapy effectiveness It was thought that the thymus serves its purpose for the immune system early in life. Insights about the organ in adults reveal its importance for later well-being. By Graham Anderson ORCID: http://orcid.org/0000-0002-2917-4085 0 Graham Anderson Graham Anderson is in the Department of Immunology and Immunotherapy, School of Infection, Inflammation and Immunology, College of Medicine and Health, University of Birmingham, Birmingham B15 2TT, UK. View author publications PubMed Google Scholar

The thymus is an organ in the chest that produces T cells, essential components of the immune system1,2. However, after peaking in size in adolescence, the thymus progressively shrinks as people age, leaving its relevance to adult health unclear. In two papers in Nature, Bernatz et al.3,4 present an artificial-intelligence approach for assessing the health of the thymus in adults. The authors identify thymic health as an indicator of healthy ageing and of whether immunotherapy for cancer treatment is likely to be successful.

doi: https://doi.org/10.1038/d41586-026-00633-6

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Competing Interests The author declares no competing interests.

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