Poltergeist is the German word for ‘Noisy Ghost’. . Poltergeist manifestations can include (but not always) inanimate object being thrown or moved around a room, knocking, pounding, or banging noises. In VERY RARE cases the person witnessing the event has been physically attacked.
Because the study of the paranormal has no conclusive scientific explanation of this event..(And there are many who do not believe these events even occur) it is difficult to say why and how this phenomenon occurs. Some studies indicate that the troublesome spirit is trying to make contact with a particular person and is doing it in the only way they know how. Other studies suggest that these entities are simply mischievous spirits who like to scare the living.
One study that I have found to be rather interesting suggests that a poltergeist is brought on by the individual experiencing it. Through prolonged periods of unresolved or repressed stress the individual is allowing their negative energy to be used by the entity to fuel its ability to manifest. Often times when the individual seeks counseling (or other forms of help to relive this stress) the reported poltergeist activity stops.
In most reported cases the activity will only last from 1 to 6 weeks and then it will just stop. Once again (as stated before) due to the lack of scientific explanation all we can do is continue to study these cases and hop that one day science can help up understand why these things happen, and how to control the situation.
Your feedback is always welcome!!!