Heidi Grantz is a Licensed Clinical Social Worker at the Yale Child Study Center, where she has served as the Clinical Director of the Tic/OC/Anxiety Specialty Clinics since August of 2009. Ms. Grantz is a therapist with experience in cognitive behavioral therapies for children with OCD and other anxiety disorders. Additionally, she is trained in Habit Reversal Therapy, a specialized behavioral therapy used in the treatment of Tic disorders and Trichotillomania. In addition to her role as Clinical Director, Ms. Grantz has served as research coordinator in the Tic/OC Specialty program since 1997. Ms. Grantz has worked on the development of the Yale Children's Global Stress Index (YCGSI) and its application in Children and adolescents with Tourette Syndrome and Obsessive-Compulsive Disorder. Ms. Grantz has been particularly interested in the impact of psychosocial stress on children’s symptom severity. She has been listed as an author on several publications in the area of psychosocial stress and future symptom severities in children and adolescents with Tourette syndrome and/or obsessive-compulsive disorder. She has served as a clinical liaison to the Tourette Syndrome Association.