Fascinating research
And perhaps even more interesting are the hostile comments from readers. Anyone would think you were advocating for removing their gonads.
I see nothing wrong in this article, which is doing the job of drawing the lay-reader's attention to an interesting (and possibly controversial) study in ScienceNOW.
Science is always advanced at the expense of conventional wisdom. If conventional wisdom were correct, we wouldn't need science at all. To the more reasonable doubters, I would suggest that they re-read the article and consider that the researchers will have used scientific methods to eliminate other variables from the calculations - such as work load, worries etc.
I should come as no surprise since we also know that the corolary is true - increasing testosterone can shorten lifespan.