Can I drink alcohol during pregnancy? Researchers from the University of Nottingham in the UK have found that even one overeating during pregnancy can affect the baby\’s intelligence, resulting in lower academic performance after school and a higher likelihood of psychological and behavioral problems, especially ADHD and inattention. Binge drinking in the study was defined as consuming 4 or more units of alcoholic beverages on one occasion, with 4 units equivalent to 1137 milliliters of beer, or 4 glasses of gin or sparkling wine, or 4 small glasses of wine. (Huang Min)