Mental Health DailyResearch. Evidence. Perspective.Published research on comorbidity.
Sleep difficulties and tiredness were among the main symptoms linking depression and PTSD in a 2026 survey of 6,240 Chinese firefighters. Women reported somewhat higher scores for both condi…
Read articleAbout 9 in 10 children referred for ADHD or autism had elevated symptoms in at least 2 of 4 areas — ADHD, autism, defiance and learning problems — and the same overlap showed up in ordinary …
Read articleA 2025 scoping review of 292 adult ADHD randomized controlled trials found that 49.7% allocated diagnosis without a general psychopathology assessment, and only 35% reported that psychiatris…
Read articleA nationwide Finnish registry study found that 2 severe infection categories still predicted dementia after adjustment for 27 noninfectious comorbid diseases.1 Cystitis and bacterial infecti…
Read articleA 2026 Saudi tertiary-hospital study estimated that adults treated for fibromyalgia — chronic widespread pain with fatigue, sleep disruption, cognitive symptoms, and overlapping mood or medi…
Read articleA 2026 retrospective case series of 22 adults with treatment-resistant depression and comorbid PTSD found that trauma re-experiencing during intranasal esketamine disappeared over later sess…
Read articleA 2026 UK Biobank MRI preprint involving 71,214 adults found that chronic pain plus current depression had a structural brain profile that was more than chronic pain plus depression pasted t…
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