If you’ve ever been alone in an old house or graveyard at night, it might seem like every little sound is amplified and menacing. The hair on the back of your neck stands up and you feel like someone is watching you. Even if though you don’t believe in ghosts, in certain spooky situations it’s not difficult to imagine a ghostly apparition coming to get you. So, what’s causing your normally rational brain to conjure ghosts and make you feel paranoid? It might be that a nearby electromagnetic field is bringing back the dead. Magnetic fields have interesting effects on living creatures. Earth’s magnetic field protects us from cosmic rays and solar winds. It also helps different animals navigate or even determine up from down. But sometimes magnetic fields can have scary effects on our brains, such as causing hallucinations and ghostly sightings. Paranormal researchers and ghost hunters believe ghosts can generate electromagnetic fields of their own. They believe ghosts are able to induce spooky events such as flickering lights or doors opening and closing mysteriously by manipulating the electromagnetic field. If you see a ghost hunter carrying a mysterious device, it’s probably an electromagnetic field (EMF) detector. Several haunted locations are known to have unusually strong magnetic fields or fluctuations. This is why many ghost hunters and paranormal researchers believe ghosts possess electromagnetic energy. But according to scientific research one of the effects of electromagnetic fields on the brain is to feel a ghostly presence. Electromagnetic stimulation of some parts of the brain can make you feel like someone is standing behind you. When magnetic fields can alter a person’s morality or affect their speech, it doesn’t seem too far that they can also induce hallucinations. So, while it might seem like electromagnetism has the power to raise the dead, it’s probably just the weird effect magnetic fields can have on your brain. If you do believe in ghosts, you can test the haunted area for magnetic flux just like a real ghost hunter by using an EMF device. You can make your own EMF detector and start looking for ghosts!