**4. Why do we need TMS for OCD?**

Over 1% of the population has no improvement from current approved treatments. Even the 1% that benefits from current approved treatments is actually still quite affected by their OCD. We use improvement criteria in OCD trials rather than response and remission, similar to schizophrenia. Schizophrenia affects 1% of the population, and there are over 20 antipsychotics available in most countries. OCD affects 2.3% of the population, and there are only 5 approved medications.
