Robert Gebelhoff has this article in the WaPo on the misreporting of research.

One of the main problems is an effect that I have called "big story bias."  Journalists have an incentive to shade their reports in the direction of making the event more newsworthy.  This effect is not limited to stories about research.  We see it across the board. 

Researchers and their institutions, also, have an incentive to produce research that makes news.  Gebelhoff notes, "At the same time, researchers have become very good at playing with data -- such as shifting the length of their experiments or picking and choosing which variables to control for -- in order to come out with the results they want." 

Once more, with feeling, what "studies show" ain't necessarily so, and no, that is not an "anti-science" position.