Semmelweis researchers link depression, sleep, obesity to persistent rheumatoid arthritis pain

September 27, 2026 at 03:54 PM2 min

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Researchers at Semmelweis University report that persistent rheumatoid arthritis symptoms may be driven by more than inflammation alone. Sleep disorders, depression, obesity, and smoking may also help keep symptoms active. The team introduced a model to help doctors identify underlying causes earlier and tailor treatment more effectively.

Key Facts

6-28 percent of rheumatoid arthritis patients fall into the difficult-to-treat group because they do not achieve lasting remission despite therapy.
Pain and depression can reduce physical activity, contribute to weight gain, and worsen both sleep and mood, creating a vicious cycle.
Dr. György Nagy, head of the Department of Rheumatology and Immunology at Semmelweis University, advises doctors to look beyond inflammation when target values improve but pain and fatigue persist.
The team's model has gained substantial international attention, with publications in Nature Reviews Rheumatology and The Lancet Rheumatology.

Beyond Inflammation

The widely used treat-to-target approach tracks measurable indicators of disease activity and adjusts treatment when inflammation is not reduced enough. The Semmelweis team argues this approach can serve as an early warning system: if inflammation improves but symptoms remain, the pain or fatigue may not be caused solely by ongoing inflammation. Dr. György Nagy advises that when target values improve but the patient still suffers, doctors should look for chronic pain syndrome, depression, sleep disorders, or obesity instead of automatically prescribing more medication. The researchers say this approach has improved outcomes in difficult-to-treat patients and may strengthen the doctor-patient relationship.

Vicious Cycle

Pain and depression can reduce physical activity, contribute to weight gain, and worsen both sleep and mood. Those changes can then intensify pain and make daily activities more difficult, creating a difficult-to-break vicious cycle. The studies in Nature Reviews Rheumatology and The Lancet Rheumatology suggest these additional health problems may do more than simply occur alongside rheumatoid arthritis. They may also contribute to keeping symptoms active.