Association among physical activity, stress and oral health among university students: A cross-sectional study.

Among 1,578 university students in mainland China, insufficient physical activity and high stress were linked to increased gingival bleeding and oral ulcers, with stress mediating the relationship between activity levels and oral symptoms rather than activity affecting oral health directly.

A plain-English summary of the study's own findings — we don't add our own claims or interpretation. Read the full paper for the complete methods and results, and apply your own clinical judgement.