Genetic testing: when it matters, how to choose wisely, and what to do next

Genetic testing offers valuable insight into disease predispositions, but clinical utility is not automatic—it demands expert interpretation and a concrete action plan. Peter Attia frames genetic tests like any medical tool: they have real strengths and real limitations, with value determined not by possessing the genetic data but by understanding what to do with it. For the longevity-conscious reader, a genetic test justifies the investment only when accompanied by a clear strategy: which variants matter in your particular context, which complementary biomarkers you need to monitor, and what prevention or intervention protocol would actually change based on results. Selecting the right test requires alignment between your health objectives, your current risk profile, and the scientific rigor of the laboratory; not all genetic tests are equivalent, nor do they offer the same level of clinical validation.