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, ...

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

Water is needed by the immune system to make more white blood cells to fight infection.

Rising pollution levels cause respiratory problems and sore throats. Home remedies like saltwater gargle, honey with warm ...