BiologicalThe most current research into the causes of GAD focuses on genetics and biological factors. There is evidence that anxiety disorders like GAD can be shared between family members, and that having a parent or relative with GAD makes one more likely to develop it. Read more on biological causes of GAD.
EnvironmentalAnother view is that GAD develops through environmental factors, meaning the things you are exposed to on a daily basis. If children have parents with an anxiety disorder like GAD, they can learn by observation and direct interaction on how to deal with stress anxiously. For example, if a child watches and hears about her mother constantly worrying, this practice and be adopted by the child and become her way of dealing with stress as well. There is also evidence that being in an unsafe environment or experiencing abuse can also lead to GAD. Click here for more on environmental causes of GAD.