What is Mass Hysteria?
Mass hysteria is a phenomenon in which a group of people simultaneously exhibit similar hysterical symptoms. Technically, mass hysteria involves physical effects, such as headache, nausea, dizziness, or a trance-like state or seizure-like movements. However, the term is also commonly used to refer to any mass delusion, in which a group of people become governed by irrational beliefs or moral panic.
