Discretizations
The conjunction paradox isn't one and doesn't require new standards of proof; rather, it's evidence that the asymmetry in the law markedly favors false positives, whatever some may say.
Cancer-causing H. pylori might find its way into you by hitching a ride in food borne yeasts.
Blame for obesity: BPA vs BUG.
The evidence that hormone replacement therapy "causes" breast cancer isn't as strong as you think.
Occupational exposure to animals: evidence for a causal link with cancer mounts.