It is common knowledge that regular exercise supports physical and mental well-being. Despite this and recommendations from health care providers, the majority of patients with chronic illnesses remain inactive. In a new study, University of Missouri researchers found that adults with chronic illness who received interventions focused on behavior-changing strategies significantly increased their physical activity levels. In contrast, interventions based on cognitive approaches, which attempt to change knowledge, beliefs and attitudes, and are most commonly used by health care providers, did not improve physical activity.