biography
In sociology and psychology, mass hysteria (also known as collective hysteria, group hysteria, or collective obsessional behavior) is a phenomenon that transmits collective illusions of threats, whether real or imaginary, through a population in society as a result of rumors and fear (memory acknowledgement).In medicine, the term is used to describe the spontaneous manifestation (production of chemicals in the body) of the same or similar hysterical physical symptoms by more than one person.A common type of mass hysteria occurs when a group of people believe they are suffering from a similar disease or ailment, sometimes referred to as mass psychogenic illness or epidemic hysteria. Read more
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