Friggatriskaidekaphobia is the fear of Friday the 13th, which is suffered by approximately 17-21 million Americans. The word "friggatriskaidekaphobia" is made up of a combination of the Norse and Greek roots words for Friday (Paraskeví), 13 (dekatreís) and fear (phobia) . The fear is so real to some people that they don’t even get out of bed on a Friday the 13th. People with this phobia often refuse to leave their homes on this day and display signs of extreme anxiety or nervousness as the date approaches. While many understand that their fear is unwarranted and irrational, they feel powerless to overcome the panic experienced. Symptoms of friggatriskaidekaphobia include sweating, trembling, nausea, and increased heart rate. Talking to a professional or even friends and family can help overcome this phobia, and other therapies such as NLP or Neuro Linguistic Programming, Hypnotherapy, etc., have also been known to be effective.