The researchers found that approximately 40 percent of the designated driver had consumed alcohol.
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Disturbingly, new research described in the Journal of Studies on Alcohol and Drugs reveals that 20 percent of “designated drivers” are impaired even though they have volunteered to drive their friends home from a party or bar. The study revealed that about 40 percent of designated drivers had consumed alcohol and that many of them had blood alcohol levels that made it much too unsafe for them to drive.
According to lead researcher Adam Barry, an assistant professor of health education and behavior at the University of Florida in Gainesville, designated drivers might drink because they think they can still consume alcohol as long as they don’t feel drunk when it comes time to drive people home at the end of the night.