Tic disorders are conditions featuring sudden, non-rhythmic movements or vocalizations. A formal tic disorder diagnosis is determined by tic frequency, duration, and type. Tics are non-rhythmic ...

Functional tics are dramatic, involuntary movements or sounds usually made in response to a trigger. While similar to other tic disorders, they have different causes and treatment options. Functional ...

DEAR DOCTOR K: My young daughter will suddenly blink her eyes or twitch her nose repeatedly, for no good reason. The doctor says she has “tics,” a condition of her nervous system. Will this go away, ...

Ever found yourself blinking rapidly without realising it? It could be your nose or ear flicks, or you suddenly clear your throat multiple times. These repetitive movements or sounds might seem ...