Skeptic Chicken, on 11 June 2012 - 11:15 AM, said:
I'm going to put my money on the cause of death being Partying.
That was my thought as well. Many people go out drinking or attend drinking parties on their birthday. I used to. Alcohol consumption greatly increases the likelyhood of car wrecks, fights, suicide, household accidents, etc.
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Authors of the study said stress played a significant part in birthday deaths, attributing fatalities to an "anniversary reaction" more commonly understood as the "birthday blues."
I personally knew two people who committed suicide on their birthdays. I supposed they thought it a significant date suitable for a significant act.