Harvard Health Content API

The tongue’s appearance gives doctors an idea about certain aspects of your health, and its color is an important clue. Some changes in the tongue’s color or appearance are signs of health issues and should be seen by a doctor.

Ads for products that promise to supercharge the body’s immune system make claims that sound too good to be true. But do these products actually work? 

RSV is a common virus that just causes cold symptoms for most people. But for infants up to eight months, and for babies and young children with certain health problems, it can be very dangerous. A new immune-boosting shot may help.

Nail fungal infections affect up to 14% of the adult population. While completely curing these infections is difficult, the right treatments can discourage the problem from spreading and make your nails look better.