Future research should examine whether the impact of rumination on impulsivity and suicide risk might be explained by its effects on parts of the brain involved in memory and decision-making. Further, future studies should also investigate how lack of premeditation, lack of perseverance, and negative urgency differ in their association with suicide risk. These three aspects of impulsivity have recently been associated with self-injurious behavior, previous suicide attempts, and suicide potential in a sample of inpatients seeking help for substance use disorders (Anestis et al., 2014). Interestingly, our second study did not reveal an association between negative urgency and suicide risk. Given that both Studies 1 and 2 suggested a relationship between brooding and negative urgency, and that previous research suggests and association between negative urgency and suicidal ideation