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When is laughter a medical symptom?

Uncontrollable and embarrassing laughter can be a symptom of a brain tumor, cyst, Angelman syndrome, Tourette syndrome, an acute stroke, drug abuse, dementia and anxiety. The laughter demonstrates there is a malfunction in the way the nervous system transmits signals.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.