The fear of Friday the 13th is called paraskevidekatriaphobia or friggatriskaidekaphobia. It is a common superstition that is believed to have originated from negative associations with Friday and the number 13 in many religions and cultures. For example, Friday the 13th is associated with the crucifixion of Lord Jesus, and the Bible mentions that the Last Supper had 13 members, where the 13th member was the same one who ultimately betrayed Jesus. Some people believe that bad things are more likely to happen on Friday the 13th, and this can cause anxiety, nervousness, or even panic attacks. Symptoms of the phobia can vary from person to person, and some people may indulge in ritualistic behavior or refuse to leave their homes on this day. Overcoming the fear of Friday the 13th involves reading facts about the date and realizing that bad things can happen on any day, not just on Friday the 13th.