Is Cortisol senken useful for longevity?

The question of whether lowering cortisol is useful for longevity cannot be directly answered from the provided context. The included information covers DNA variants (PPARA, MTHFR, LEP), ferritin as an inflammatory marker, and general gut health – but not cortisol or its regulation. Cortisol is a stress hormone; chronically elevated levels are associated with negative health outcomes such as hypertension, immune suppression, and accelerated cellular aging. Therefore, reducing excessive cortisol could theoretically promote longevity by mitigating inflammation and improving stress resilience. However, the provided sources lack specific studies or mechanisms supporting this link. The evidence is therefore rated as unclear. It is crucial to distinguish between acute and chronic stress and not to lower cortisol indiscriminately, as it serves essential physiological functions. Individual assessment by a physician or endocrinologist is recommended before any intervention.