A dancing plague. Witchcraft. Sonic attacks. TikTok tics.Mass psychogenic illness (MPI), also known as mass sociogenic illness and once commonly referred to as mass hysteria, has long been the source ...
Jazmin Edson was sitting in her year 12 English class in February 2021 when she started to experience her first tic attack. WARNING: This article contains sensitive content and may be distressing for ...
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