Why do functional tics happen?

A short video explaining some of the causes of functional tics, how they are caused by a 'glitch' in the brains software and what things make those glitches worse.
For more about functional tics go to this page - neurosymptoms....
Made by Cognihealth and Pooja Jain for the Neurosymptoms FND guidea t neurosymptoms.org with input from Prof Jon Stone (University of Edinburgh) and with many thanks for funding from Tiny Changes -tinychanges.com/