Can Cortisol help with Fruchtbarkeit?

A DNA test like MyBody-X cannot directly measure cortisol levels – cortisol is a hormone with strong circadian fluctuations and is not encoded by a single gene. While genetic variants (e.g., in NR3C1 or FKBP5) may subtly influence stress axis regulation, their effect on fertility is small and not clinically validated. The provided context shows that MyBody-X's cortisol test is a blood-based snapshot, not a diagnostic tool for chronic imbalance or fertility issues. Evidence for a direct genetic link to cortisol-related infertility is weak („mechanistic/unclear“). For fertility concerns, standard medical workup includes salivary cortisol profiles, dexamethasone suppression tests, and assessment of other hormones (AMH, FSH, LH, etc.). DNA tests alone cannot diagnose or rule out cortisol-driven fertility problems. Consumers should be cautious of overinterpretation and consult a reproductive endocrinologist.