Think cold weather makes you sick? Learn what really causes winter illness—and why that drippy cold‑air nose is usually ...

New research appears to provide a clearer picture of why cold and flu cases are more common during the winter. The study found evidence that our nose’s innate immune response weakens in colder ...

Every year parents and caregivers tell children to put on a coat as temperatures drop and winds start blowing, warning the young ones that sicknesses hit the hardest when the air turns brisk. But ...

Rapid interferon activity in nasal cells limits rhinovirus spread, explaining why some people escape cold symptoms while others develop inflammation and mucus buildup. The intensity of common cold ...