In sociology and psychology, mass hysteria 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.
Sociology is the study of social behaviour or society, including its origins, development, organization, networks, and institutions.
Psychology is the study of behavior and mind, embracing all aspects of conscious and unconscious experience as well as thought.
An illusion is a distortion of the senses, revealing how the brain normally organizes and interprets sensory stimulation.
MASS HYSTERIA by Vsauce2
In medicine, the term is used to describe the spontaneous manifestation of the same or similar hysterical physical symptoms by more than one person.
A symptom is a departure from normal function or feeling which is noticed by a patient, reflecting the presence of an unusual state, or of a disease.
Medicine is the science and practice of the diagnosis, treatment, and prevention of disease.
Mass Hysteria - Donnez vous la peine by Mojo55555
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.
Mass psychogenic illness, also called mass sociogenic illness or just sociogenic illness, is "the rapid spread of illness signs and symptoms affecting members of a cohesive group, originating from a nervous system disturbance involving excitation, loss, or alteration of function, whereby physical complaints that are exhibited unconsciously have no corresponding organic" cause.
A disease is a particular abnormal condition, a disorder of a structure or function, that affects part or all of an organism.