ATLANTA -- Tourette syndrome occurs in 3 out of every 1,000 school-aged children, and is more than twice as common in white children as in blacks or Hispanics, according to the largest U.S. study to ...

When Lucas was in third grade, his parent first noticed his tics. They wondered if it was Tourette's Syndrome (TS), since he had fluctuating involuntary arm jerks and other physical tics, plus a vocal ...