Facial twitches, tics, vocalizations, and uncontrollable shouting often occur. Changes in the individual's stress may cause the condition to get worse.
Tics commonly become more severe in the evening and in the presence of family or close friends.
Anxiety, fatigue, pleasurable anticipation, and television watching also make them worse. TS is often associated with a number of developmental and other neurological disorders. The person's IQ is usually normal. The problem lies with attention, perseverance and the ability to keep themselves and their work organized. Beginning in childhood, it includes face twitches, tics and uncontrollable arm and shoulder motions.