This article argues that obstructive sleep apnoea (OSA) can mimic or exacerbate depressive symptoms. Kaplan explains that chronic sleep disruption, hypoxia and daytime fatigue associated with OSA may produce a depressive picture and that antidepressants alone are often ineffective. The paper urges clinicians to exclude OSA when diagnosing chronic or treatment‑resistant depression and notes that mood often improves when sleep apnoea is treated【572022672650334†L233-L240】.
