From Strictly Come Dancing to the Tour de France 'curses' have rational explanations. Here, psychologists discuss why belief in them persists.
Sleep paralysis and exploding head syndrome can help explain things that go bump in the night.
Crop circles are global phenomena gaining attention as paranormal culture becomes mainstream, along with a hybrid approach that emulates scientific investigation.
People with paranormal beliefs often experience social rejection. But for those at risk of psychosis, support is important for prevention.