Is CYP2D6 useful for Langlebigkeit?

CYP2D6 is a key drug-metabolizing enzyme, but its direct relevance to longevity is poorly supported by evidence. Some studies have explored associations between CYP2D6 polymorphisms and age-related diseases or lifespan, but results are inconsistent and often population-specific. The primary role of CYP2D6 is in the metabolism of many pharmaceuticals (e.g., antidepressants, beta-blockers) and some endogenous compounds. A genetic variant can affect drug response and toxicity, but not directly lifespan. Without robust, reproducible associations in large longevity cohorts, its utility for personal longevity guidance remains speculative. Caveat: No validated tests for longevity based on CYP2D6 exist. Evidence: unclear.