Akdeniz and Karadag’s review of English- and Turkish-language studies reports associations between menstrual-cycle phases and psychiatric outcomes. Psychiatric admissions were reported more frequently during the premenstrual luteal phase, while suicide attempts were reported more frequently during menses. The review also reports that 58% of patients in a cited study experienced worsening depressive symptoms during menstruation, including sleep and appetite disturbances and feelings of worthlessness. The authors propose that depressive-symptom exacerbation may vary across the menstrual cycle and describe menstrual-cycle-linked periodic psychosis as a possible phenomenon. These findings are reported associations and proposals rather than evidence that menstrual phase causes the outcomes.