CNN CNN Newsroom September 21, 2013 19:45:00
But new york, there's so many people around that there's people looking at you all the time. >> reporter: tourette's is genetic. and as it turns out, both of dash's older sisters have it as well. here he is at age 11, talking about tourette's with his sister, gwen. this is a video for the tourette's syndrome association. >> i have to, like, look at him in a funny way or i just can't concentrate. >> dash has come a long way since then appearing in "romeo & juliette, " the thin red line and silver linings playbook. while his career was taking off, it was this report on cnn.com that caught dash's...