Is exercise an effective treatment for depression?
Exercise is associated with a greater reduction in depression symptoms compared with no treatment, placebo, or active control interventions, such as relaxation or meditation. However, analysis of high-quality studies alone suggests only small benefits.
Cooney G, Dwan K, Mead G. Exercise for Depression. JAMA. 2014;311(23):2432-2433. doi:10.1001/jama.2014.4930