From around ... bacteria in the mouth, wash away food particles and provide essential minerals for tooth enamel repair. Without adequate saliva, you're more vulnerable to cavities and gum infections, ...

A sore throat, loss of taste, and a burning tongue are telltale signs something is wrong. But the culprit might surprise you.

With these Wirecutter-approved picks under $100, you don’t have to spend a lot to get a good deal this Amazon Prime Day.