“A team of researchers at the University of Auckland has found evidence that suggests people who are depressed can improve their outlook simply by modifying their posture while sitting.”
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Carissa Wilkes et al, Upright posture improves affect and fatigue in people with depressive symptoms, Journal of Behavior Therapy and Experimental Psychiatry (2017). DOI: 10.1016/j.jbtep.2016.07.015