Canadian wildfire smoke descended into the Upper Midwest again on Monday, heightening the risk of physical health impacts.

When people think of heart problems, they often imagine chest pain or trouble breathing. But not many know that a constant ...

When there is a threat to our body, the immune system produces inflammation as a natural process. But when this inflammation persists for a long time, it can be a sign of a serious problem. In such a ...

A contagious new COVID-19 variant called NB.1.8.1, aka "Nimbus," is now dominant in the United States, CDC data show. What to ...