- Friday the 13th is the most prominent of a group of traditional superstitions, Stuart Vyse writes
- Most superstitions arise as a method of coping with uncertainty
Stuart Vyse was professor of psychology at Connecticut College and is the author of "Believing in Magic: The Psychology of Superstition," which won the American Psychological Association's William James Book Award. The opinions expressed here are solely those of the author.
This article was originally published in May 2011.
(CNN)Why do we fear today above all other Fridays? On any other Friday, we hear the gleeful exclamation of "TGIF." The work week is almost over, and playtime is about to begin.