Comprehensive Behavioral Intervention for Tics (CBIT), based on HRT, is a first-line treatment for Tourette syndrome and tic disorders. With a high level of confidence, CBIT has been shown to be more likely to lead to a reduction in tics than other supportive therapies or psychoeducation. Some limitations are: children younger than ten may not understand the treatment, people with severe tics or ADHD may not be able to suppress their tics or sustain the required focus to benefit from behavioral treatments, there is a lack of therapists trained in behavioral interventions, finding practitioners outside of specialty clinics can be difficult, and costs may limit accessibility. Whether increased awareness of tics through HRT/CBIT (as opposed to moving attention away from them) leads to further increases in tics later in life is a subject of discussion among TS experts.