Lots of people across the Chicago area complained about smelling smoke in the air on Thursday, and there was a perfectly good explanation.

Kennon Heard, MD, Ph.D., was skeptical when he first heard about cases in emergency departments of severe, recurring episodes of nausea and vomiting associated with chronic use of marijuana. In 2004, ...

Although the gas is impossible to see, smell or taste, carbon monoxide poisoning can escalate quickly and potentially turn ...