Brad Arnold, the lead singer of rock band 3 Doors Down, announced Wednesday that he was diagnosed with Stage 4 cancer.

Encephalitis lethargica was a mysterious pandemic that blurred the line between physical and mental illness. So what caused ...

However, some with COVID-19 develop only mild symptoms—or experience no symptoms at all. The best way to protect yourself is to get vaccinated, wash your hands, and follow respiratory etiquette. If ...