A poltergeist is a type of ghost or supernatural entity known for causing physical disturbances, such as moving objects, making noises, or even creating chaos in a home. The term comes from the German words "poltern," meaning to make noise, and "geist," meaning spirit. Unlike traditional ghosts, which are often thought to be the spirits of the deceased, poltergeists are believed to be manifestations of energy, sometimes linked to living individuals, particularly adolescents. Reports of poltergeist activity have been documented throughout history and across cultures. These phenomena can include knocking sounds, objects being thrown, and unexplained temperature changes. While some people attribute these occurrences to supernatural forces, others suggest psychological or environmental explanations, such as stress or electromagnetic fields.