Common implies that there’s a single ordinary pathogen to blame for your runny nose, coughing, and mild fatigue. Actually, there’s a huge array of viruses—­more than 200 of them—that induce colds, ...

“In the next 10 minutes you’re going to inhale a thousand bacteria — and you’d like to clear them without ever knowing about it ... The result is a stuffy nose, phlegmy throat or blocked airway. The ...

“Also, our body’s natural adrenaline levels, which help suppress coughs, decrease at night, making us more sensitive to that ...