Or maybe it doesn’t. The Texas doctor who proposed the theory linking K2 and other crappy brands of smokeable incense to heart problems admits the results of his vast test group, three teenagers in all, are still inconclusive. But hey, there’s no harm in a little speculating. Similarly, the DEA used its emergency powers a few months ago, to ban the chemicals used in making the herbal blends, potentially staving off mass deaths or more likely, lots of headaches.