Fetal alcohol spectrum disorders (FASDs) are a group of conditions reflecting the possible effects of prenatal exposure to alcohol. These include fetal alcohol syndrome (FAS), alcohol-related birth defects (ARBD), and alcohol-related neurodevelopmental disabilities (ARND). Fetal alcohol syndrome is a leading cause of cognitive disabilities in children. The exact amount of alcohol exposure that is associated with these disorders has not been determined, so there is no known limit for safe alcohol consumption in pregnancy. For this reason, women planning to conceive and pregnant women are advised not to drink alcohol.