Insanity: doing the same thing over and over again and expecting different results. –Albert Einstein
So all these researchers that study links between obesity/alcohol/exercise and cancer over and over and over are one of two things:
Option 1: If they expect different results, according to Einstein, they are insane.
Option 2: If they expect the same results, they are wasting time and money.
Either way, they need to stop or lose their jobs and funding. Make way for researchers with some original ideas!