Why do kids laugh at nothing?

Why do kids laugh at nothing? They are called gelastic seizures, and appear as spontaneous, uncontrollable and often maniacal giggles or laughter. They are short and unpredictable. The cause: a rare form of epilepsy called Hypothalamic Hamartoma (HH) in which a non-cancerous lesion wreaks havoc in a highly sensitive area near the brain’s stem.

They are called gelastic seizures, and appear as spontaneous, uncontrollable and often maniacal giggles or laughter. They are short and unpredictable. The cause: a rare form of epilepsy called Hypothalamic Hamartoma (HH) in which a non-cancerous lesion wreaks havoc in a highly sensitive area near the brain’s stem.