Sitting up straight may improve your mood and decision-making

Research from McGill University suggests that sitting upright may subtly impact one's emotional state and decision-making abilities. In a laboratory study, participants who maintained an upright posture reported more positive feelings and performed better in a task involving risk and reward compared to those who slouched or sat in a control condition.

Study leader Jorge Armony, a professor in McGill's Departments of Psychiatry and Psychology, notes that the effects were minor and observed under controlled circumstances. However, the findings provide evidence that physical position can influence mood and behavior.

The researchers designed the experiment to subtly influence participants' posture without revealing the study's purpose. Participants were recruited from the McGill community and asked to complete tasks on a tablet while being told that researchers were evaluating a mobile application. The tablet setup was arranged to encourage either an upright or slouched posture.

Results showed that upright participants took more calculated risks and earned larger rewards in a virtual balloon game, indicating more effective risk-taking rather than impulsive behavior. Additionally, participants in the upright group reported stronger feelings of pride, which is associated with a positive mood.

Earlier studies about posture and mood have faced criticism for instructing participants directly about the desired posture, potentially affecting their behavior. In this study, the researchers altered the environment to subtly change participants' posture, addressing this issue. Objective measurements, such as video software to measure neck angles, supported the findings.

While the study suggests that posture changes may have a small but measurable impact on emotions and decision-making, Armony emphasizes that simply altering posture is unlikely to produce a significant life transformation. The research, published in the British Journal of Psychology, was supported by grants from the Natural Sciences and Engineering Research Council of Canada and the Social Sciences and Humanities Research Council of Canada.