What is Tourette's disorder (TD)?
Tourette's disorder (TD), sometimes called Tourette's syndrome (TS), is a neurological disorder characterized by multiple repeated tics. Tics are abrupt, purposeless, and involuntary vocal sounds or muscular jerks. Symptoms of TD usually begin between the ages of five and 10 years of age, and usually begin with mild, simple tics involving the face, head, or arms. With time, tics become more frequent and increase in variety, involving more body parts such as the trunk or legs, and often become more disruptive to activities of daily living (ADLs).