Many US adults do not get enough daily physical activity. To change behavior, governments and other agencies design marketing messages encouraging more physical activity. A lab experiment draws on Regulatory Focus Theory to examine health communication's persuasive effects on physical activity....

The existing literature has identified that empathic concern for another person who is in need can induce helping behaviour. However, as people may experience more than one feeling in a given helping situation, it is possible that other feelings (e.g., pride or guilt) may also elicit helping...