There is no safe amount of alcohol to drink before people put themselves at risk of blacking out, a review of studies concludes. Individual biological differences, not just alcohol consumption, influence the risk of blackouts, Medical Daily reports.
Scientists from the Research Society on Alcoholism reviewed 26 studies on alcohol-induced blackouts published in the past five years.
Alcohol-induced blackouts, or memory loss for all or portions of events that occurred during a drinking episode, are reported by approximately 50 percent of drinkers, the researchers wrote in Alcoholism: Clinical & Experimental Research. Blackouts are associated with a wide range of negative consequences, including injury and death.