Friday the 13th : Friggatriskaidekaphobia

Find yourself  a bit wary on this Friday the 13th?  Well, you're not alone, in a 2004  article in  National Geographic,  Donald Dossey, founder of the Stress Management Center and Phobia Institute in North Carolina, as saying up to 21 million people may suffer from the phobia, exhibiting symptoms that can range from mild anxiety to full-out panic attacks.

Dossey’s center has estimated that up to $800 million is lost every Friday the 13th. Why? People who believe the day is unlikely don’t want to travel, go to work, go to a store or do much of anything except stay home and avoid black cats and 13th building floors.


Friggatriskaidekaphobia (Fear of Friday the 13th)

(Frigga being the name of the Norse goddess for whom "Friday" is named in English and triskaidekaphobia meaning fear of the number thirteen


How/ Why is  13 unlucky?

• Thomas Fernsler, a math specialist at the University of Delaware, is known as Dr. 13.  Fernsler, the associate policy scientist in the university’s mathematics and science education resource center, has the moniker because he has done extensive research on the day. A story about him on the university’s Web site, quotes him as saying  that Jesus Christ was crucified on a Friday the 13th, and, the number 13 “suffers from its position after 12, which numerologists consider a complete number, encompassing the number of months in a year, signs of the zodiac, gods of Olympus, labors of Hercules, tribes of Israel, apostles of Jesus, days of Christmas and eggs in a dozen.”