In December 2016, American diplomats in Havana, Cuba, began reporting a strange set of symptoms, nausea, dizziness, headaches, and hearing loss. Many described hearing a high-pitched sound, like marbles rolling inside a funnel, just before the illness struck. By 2018, dozens of U.S. and Canadian officials had been affected, sparking panic, diplomatic fallout, and years of investigation.

Was it a new kind of weapon, crickets mistaken for sonic attacks, or mass stress spreading through embassy halls? In this episode of Mysteries at Bedtime, Jack unravels the story of the Havana Syndrome, from the first reports in Cuba to its spread in China, through government inquiries, scientific studies, and a mystery that remains unsolved to this day.

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