You're relaxing on the sofa when suddenly your eyelid starts twitching. Or perhaps it's a muscle in your arm, your leg, or ...

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 ...

Eye twitching may be a physical reaction, but many traditions view it as an intuitive or energetic signal. It reflects inner ...

Billie Eilish has Tourette's syndrome, a brain disorder characterized by repetitive and involuntary sounds and motions. The singer spoke about her tics in a recent interview with David Letterman. She ...

Motor tics are spasmodic contractions of muscles, which typically involve the face and are habitual. Examples include squinting the eyes, grimacing, or even turning the head. Sometimes motor tics ...

Please provide your email address to receive an email when new articles are posted on . In youth with Tourette syndrome and other persistent tic disorders, treatment with behavioral therapy was linked ...