Is Déjà Vu A Glitch In The Human Brain?

In theory, 80 percent of human beings tend to experience déjà vu. It is when a person engaged in the present situation, place or event suddenly experiences a feeling of familiarity. Is this magic or some kind of sorcery? Well, science says it is not. There's a study saying that it is probably caused by a glitch in the brain neurological system and the pathways inside a human brain.