Myths vs facts: Cortisol and Fruchtbarkeit

The question of myths vs facts about cortisol and fertility is not directly addressed in the provided context. The context covers DNA tests for stress and histamine (DAO gene variants), not cortisol or fertility. A common myth is that a consumer DNA test like MyBody-X can reliably predict your cortisol levels or their impact on fertility. The fact is: cortisol is a hormone influenced by many factors (stress, sleep, diet). Chronically elevated cortisol can impair fertility, but evidence for genetic testing is weak. MyBody-X does not offer a cortisol test according to the context. Research on stress-related genes (e.g., COMT) is limited and not diagnostic. For fertility concerns, medical hormone analysis and lifestyle optimization are more relevant than genetic tests. Evidence rating: unclear, as the context provides no robust data on cortisol and fertility.