Tourette's Syndrome is a nervous system disorder characterized by simple or complex motor or vocal tics that develop during childhood. The cause remains unknown, but Mayo Clinic theorizes it could result from genetic mutations or brain abnormalities. Tourette's cause lifestyle difficulties, and the syndrome is often associated with ADHD, OCD, learning disabilities, depression, and sleep and anxiety disorders. Treatments focus on managing tics, and studies have shown medical marijuana safely reduces the frequency of tics.
Cannabis effectively reduces tics and also treats the associated behavioral problems of Tourette's syndrome. One study found single cannabis treatment on adult Tourette's syndrome patients significantly improved tics and obsessive compulsive behavior when compare to a placebo. Another study found six weeks of cannabis administration significantly reduced tics over time compared to placebo. Similarly, another study over six-weeks found cannabis treatment reduced tics without causing adverse side effects or impairing neuropsychological performance. Other studies have shown cannabis does not impair verbal or visual memory, reaction time, intelligence, attention span, divided attention, vigilance, or mood compared to placebo for Tourette's patients, suggesting cannabis has no acute or long-term cognitive side effects.
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