Hysteria refers to a state of uncontrollable excitement or emotional disturbance, often characterized by extreme agitation, anxiety, and irrational behavior. It can manifest in individuals as anxiety attacks or in groups as mass panic or collective excitement. The term is often associated with a lack of rationality and can involve exaggerated emotions and reactions.
The word 'hysteria' comes from the Greek word 'hystera,' meaning 'uterus.' Historically, it was believed that hysteria was a condition related to the female reproductive system. The term evolved over time to refer more broadly to irrational behavior and emotional disturbances in both men and women.