Heavy metals get a bad rap. For the most part, it is deserved because they are usually toxic. Except when they aren't. You have probably consumed a whole lot of at least one or two of them, yet you ...

A barium enema is a procedure that uses an X-ray to examine the lower gastrointestinal (GI) tract. It can help identify colorectal cancers and other conditions. Experts may also call barium enemas ...