The term for the fear of confined spaces is "claustrophobia." This anxiety disorder is characterized by a fear of being in small or enclosed areas, such as elevators, tight rooms, or crowded spaces. Individuals with claustrophobia may experience panic attacks, rapid heartbeat, sweating, or a feeling of being trapped when faced with these situations. The fear can vary in severity and may lead some to avoid specific places altogether. Treatment often includes therapy, such as cognitive-behavioral therapy, and relaxation techniques to help manage their anxiety.