Mixing vodka and Red Bull is a popular concoction.

However, a new study published in the Journal of Psychiatric Research suggests this potent mix compounds the effects of heavy drinking, and increases the “risk of fighting, violence, and participation in risky behaviors.”’

Speaking to Science Daily, the study’s co-author Dr. Matt Parker of the University of Portsmouth, said, “This study is the first to show that the two together may be exacerbating some of the negative effects of binge drinking.” “Alcohol reduces our inhibitions, and in low doses can cause relaxation and euphoria,” Parker said. “However, in higher doses, this low inhibition can cause problems with fighting or risky behavior.”