No, ghosts are not real
< (2 of 2)
Hallucinations may cause people to believe they have seen a ghost
Hallucinations are common occurrences that cause people to believe they have seen a ghost. The toxins released from carbon monoxide poisoning has physiological effects, which can make people believe that their house is haunted, Sleep paralysis is also a common occurrence that causes hallucinations, leading people to believe that they have seen or felt a ghost.
< (3 of 3)