Doing no harm

Not having a heart attack? You probably shouldn't have a stent. Beta-blockers are iffy, too; it may be that they will have no effect on your likelihood of heart disease or death, though you'll probably die with better-looking blood pressure numbers. That proposed knee operation might bear a little scrutiny, too. The article doesn't discuss statins, so don't even get me started on those. A good way to look at proposed treatments is to compare the "number needed to treat" with the "number needed to harm."