In January 1962, three girls at a mission boarding school in Kashasha, Tanganyika, started laughing. They couldn't stop.
The symptoms: The woman visited a clinic because she had long experienced bursts of uncontrollable laughter, which doctors described as "mirthless" in a report of her case. According to the patient, ...
A woman in her thirties has lived her entire life with uncontrollable laughing fits that defied all medical explanation. These strange episodes, occurring since her earliest childhood, were ...