In what doctors called an "extraordinary" case, a teenage girl developed several rare conditions after attending a pop ...

Feb. 6, 2025 — Despite new medication, cystic fibrosis often leads to permanent lung damage. Researchers have discovered that the disease causes changes in the immune system early in life ...

There are two types of cough: productive and nonproductive. A productive cough produces phlegm or mucus, clearing it from the lungs. A nonproductive cough, known as a dry cough, doesn’t produce ...