The fact sheet provides basic information about how alcohol and drug use during pregnancy can lead to Fetal Alcohol Syndrome (FAS) and Alcohol Related Birth Defects (ARBD), resulting in such problems as mental retardation, sleep disturbances, learning disabilities, muscle problems, heart defects, and small head size. The question and answer format provides information on: What is meant in warnings to pregnant women not to drink alcohol? What kind of damage can occur to the fetus from alcohol consumption by the mother? Is there a safe amount of alcohol that a pregnant woman can drink? How common are FAS and ARBD? What are the problems of children born with these disorders? Can FAS be treated? How can FAS be prevented? Why is it especially important to educate young people about FAS and ARBD? What about prescription and non-prescription drugs; can they cause birth defects similar to FAS? (DB)