The Los Angeles Times reports on a study published in JAMA Pediatrics that has found that maternal use of acetaminophen during pregnancy may increase the risk of ADHD in their children. Researchers studied children and mothers enrolled in the Danish National Birth Cohort by taking surveys of maternal use of acetaminophen during pregnancy. They also asked mothers to report on observations of their child’s behavior or whether their child has a prescription for ADHD medication. The data showed that “kids whose mothers took the painkiller at any point during pregnancy were 29% more likely to be diagnosed with ADHD than were kids whose mothers took none and that this link was even stronger when mothers took the drug during the second or third month of pregnancy. Researchers speculate that the compound disrupts hormonal release which can influence brain development.