nitric oxide

An alarmist article by NPR wants us to believe that we're in grave danger. That's because some deli meats have labels that are inaccurate, regarding the presence (or absence) of nitrate, a preservative. Here's the science that explains why the whole thing is nothing but a silly scare.
Two large data-mining studies show an association between the most common type of medication for heartburn and ulcers PPIs (e.g., Nexium, Prilosec) and heart attacks. This type of analysis cannot support cause-and-effect, but the data encourage prospective trials.