A new synthesis of global evidence finds that experiencing gestational diabetes during pregnancy is linked with a decline in intellectual function among mothers, and may increase the risk of neurodevelopmental disorders, including autism spectrum disorder and attention-deficit/hyperactivity disorder (ADHD) in children. The ongoing systematic review and meta-analysis of 48 observational studies involving over 9 million pregnancies, is being presented at this year's Annual Meeting of The European Association for the Study of Diabetes (EASD), Vienna (15-19 Sept).