Tourette syndrome (TS) is a neurobehavioral disorder characterized by involuntary motor and vocal tics that typically begin before age 18. Common motor tics include eye blinking, head jerking, and body twisting, while vocal tics can include sounds like grunting, snorting, or repeating words. The cause is unknown but may involve abnormalities in neurotransmitter levels in the brain. Treatment involves psychotherapy to help manage symptoms and develop coping strategies, as well as medication in some severe cases.