There are plenty of reasons for skepticism about medical studies. Some are poorly designed or performed, and some conclusions are totally implausible. In addition, some interpretations of them are intentionally misleading, and some studies need not have been done at all.
AI and healthcare, murder or malpractice, call centers, and should we get rid of scientific journals?
Two studies look at how you can use words to spin non-significant findings into published studies, and how falsified data spreads unchecked from one meta-analysis to another.