IF you suffer from paraskevidekatriaphobia, then today is probably going to be a nightmare - it is Friday the 13th.
The combination of an unlucky number with an unlucky day is feared and a great cause of anxiety for those that are superstitious.
Paraskevidekatriaphobia, is a fear of Friday the 13th, which makes 2013 an extremely bad year for sufferers.
Considering this year a Friday the 13th falls twice - today and in December.
Why is the combination so harrowing for some?
Some people suggest it is because there were 13 guests at The Last Supper with Judas being the betrayer and the 13th guest, plus Jesus was crucified on a Friday.
However, if Biblical history is not your thing then there are 13 knots in a hangman's knot along with many other 13s associated with being executed.
Also, Friday has long been considered unlucky for many motives.