Kuchta, Eliza, Kacper Wrzosek, Maria Leśniak, Kacper Ponikowski, Kornelia Kuchta, and Halina Piecewicz-Szczęsna. 2026. “Sleep Disturbances and Depression: A Narrative Review of the Bidirectional Relationship, Mechanisms, and the Role of Physical Activity”. Quality in Sport 63 (July):73039. https://doi.org/10.12775/QS.2026.63.73039.