Why Do People Take Part In Risky Behavior?

In a study of patients with Parkinson’s disease, who were on drugs that stimulated dopamine receptors used to treat their movement symptoms, 17% developed highly unexpected behavioural addictions to gambling or compulsive ...., shopping or eating behaviours. These patients also sought out risks more, and showed a preference for novelty on lab tests. So it seems that an active dopamine system can make us take more risks.