A socially contagious physical condition with no physical cause is known as what

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A socially contagious physical condition with no physical cause is known as mass psychogenic illness. This phenomenon occurs when a group of people start experiencing similar physical symptoms, such as headaches, nausea, or fatigue, that cannot be explained by any underlying medical condition. The symptoms are believed to be a result of psychological factors, such as stress, anxiety, or suggestion, spreading through the group. This condition is also referred to as mass hysteria or collective delusion. Examples of mass psychogenic illness include the Tanganyika laughter epidemic, the Salem witch trials, and the dancing mania of the Middle Ages.

A Socially Contagious Physical Condition with No Physical Cause Is