Can Cortisol senken help with fertility?

Whether lowering cortisol can improve fertility is not clearly supported by strong evidence. There is a plausible biological mechanism: chronic high cortisol (e.g., from stress) can suppress the hypothalamic-pituitary-gonadal axis, leading to menstrual irregularities and reduced sperm quality. However, direct evidence that intentionally lowering cortisol enhances fertility is limited to observational studies on stress reduction (e.g., mindfulness, yoga) rather than controlled trials with cortisol-lowering agents. Importantly, cortisol is essential for health; unsupervised reduction (e.g., via supplements) can be harmful. A consumer DNA test like MyBody-X may report variants in cortisol-related genes (e.g., NR3C1, FKBP5), but these have unclear clinical utility for fertility. Always consult a doctor for fertility issues. Evidence: mechanistic/unclear.