>> completely different person. tourette's, you have a lower range where people can control the symptoms and learn to channel some of that. then you have extreme cases, which is what he went through. incredible. 200,000 americans diagnosed with tourette's syndrome every year. >> robby was on 42 different types of medication. at one point the side effects were so extreme he attempted suicide three times. >> we're glad to see he's doing much better now. >> absolutely. coming up, hangover helpers. >> the new products and ideas to help keep the next day headaches and queasiness at bay. you're watching "world news now." >> announcer: "world news now" continues after this from our abc stations.