ok so i am having a colonoscopy/upper gi on the 13th of this month...sounds fun as it is...i am worried enough aabout that as its my first hospitalvisit/anesthesia visit. anyway..i know you are all scientists..and you guys are probably not superstitious..and u are logical... with that being ssaid..i wont ask fi you believe in superstition...what iwill ask ..is for you to please evavluate the post below and tell me what your opinions on getting this done on this date are..thanks ''also i found this post on a site....tell me what you think.... ''Skeptics are prone to saying that it's only a superstition, which is true, so it won't have any effect on your surgery, which is not true. Surgery is done by a doctor, who is human and who may be superstitious. There is an increased chance, just based on that, that it may be 'unlucky' to have surgery on Friday the 13th. People, even people who don't believe Friday the 13th has a supernatural significance, tend towards having more stress on days they are culturally aware are considered 'bad'. Personally I don't believe Friday the 13th has any supernatural significance but being skeptical I can't allow myself to then assume it has no behavioral significance. Doing a little research confirms that it does. A British medical study advises not getting surgery on Friday the 13th. Reference: Both of these sources are British, but I would assume the behavioral patterns would be consistent with the US: http://lib.stat.cmu.edu/DASL/Datafiles/F [Broken] ridaythe13th.html http://www.ncbi.nlm.nih.gov/pubmed/82929 46 But buyer beware, people might also be more careful on Friday the 13th: http://www.thestar.com/living/article/44 2746''' ''