What role does Fertility Check | Fruchtbarkeits-Test play in Langlebigkeit?

The Fertility Check (Fruchtbarkeits-Test) is primarily a tool for assessing reproductive health, not longevity. It measures biomarkers such as AMH, FSH, or genetic variants associated with fertility issues. An indirect link to longevity may exist through the concept of biological aging: early ovarian aging can be a marker of accelerated aging, but this is not an established predictor of overall lifespan. The evidence for a direct role of the Fertility Check in longevity is weak and rests mainly on mechanistic considerations (e.g., telomere length, oxidative stress). Consumer DNA tests like MyBody-X may analyze single SNPs (e.g., in the VDR gene), but their effect on fertility or longevity is very small and not clinically actionable. Longevity is polygenic and heavily influenced by lifestyle factors. Therefore, the Fertility Check should not be misinterpreted as a tool for life extension. The evidence is rated as 'unclear' because no robust human studies demonstrate a causal or predictive benefit.