I am curious as to the possibility of " a common denominator" in IBS Sufferers! Such as age groups afflicted, equally distributed or not between the sexes; locale, as in geographical surroundings in childhood years,etc. Does there seem to be a "common denominator" or is this IBS malady completely random? For starters, I am a 63 y/o female, born & raised in So. Texas in a non-rural locale, with WWII as the historical backdrop, along with certain foods in short supply or rationed, and basically healthy! What do you all think about this?