Fear of the number thirteen?  What is Triskaidekaphobia?    The
premise of phobia or fear of the number 13 is usually
challenging to explain, but in some cases, its causes are linked
to panic-related experiences or genetic conditions. Fear of the
number 13 can be handled by psychologist using exposure therapy
in combination with drugs.  The term comes from Greek, where
tris means three, kai means and, deka means ten and phobia means
fear.  Number 13 - Connotations  The number 13 wasn’t always
bad-famed, quite the contrary. In ancient China and Egypt,
thirteen was considered a lucky number. It is unclear when
exactly did 13 become an unlucky number.  Some attribute it to
the Bible, where the Last Supper was attended by 13 people, and
some speculated that the 13th person at the table was Judas, who
later betrayed Jesus. However, there is no reference to support
this theory.  Another belief is that the phobia of number 13 is
caused by it being an irrational number and 12 being the number
of perfection. There are