A Grateful Heart is a Nonviolent Heart

Five studies tested the hypothesis that gratitude is linked to lower levels of aggression. Although gratitude increases mental well-being, it is unknown whether gratitude mitigates against aggression. Gratitude motivates people to express sensitivity and concern for others and stimulates prosocial behavior. Aggression, defined as intentionally harming another person who is motivated to avoid the harm, runs counter to the motivation to increase others’ welfare and should be reduced among grateful people. Cross-sectional, longitudinal, experience sampling, and experimental designs yielded converging evidence to show that gratitude is linked to lower aggression. Higher empathy mediated the relationship between gratitude and lower aggression. These findings have widespread applications for understanding the role of emotion on aggression and can inform interventions aimed at reducing interpersonal aggression.

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