Free to be Healthy? Free Will Beliefs are Positively Associated With Health Behavior.

Previous research has demonstrated that a stronger belief in free will contributes to a variety of socially desirable behaviors. We assessed the correlation between free will beliefs and health behaviors. Four studies (N = 1172) provide evidence that belief in free will is positively associated with health protective behaviors (e.g., physical activity, fruit and vegetable consumption, low fat diet) and negatively associated with health risk behaviors (e.g., alcohol consumption, smoking, unhealthy snacking). In relation to the respective health protective and health risk behaviors, we found free will beliefs were more strongly correlated with physical activity and alcohol consumption, respectively. We also found free will beliefs were associated with key social cognition determinants (e.g., attitude, subjective norm, perceived behavioral control, and intention). Overall, our results suggest that belief in free will can have important consequences for health behavior. This contributes to current theorizing about the implications of believing in free will.