Cases of norovirus, a wretched and highly contagious stomach bug, are surging in parts of the United States this winter, according to government data. A new strain of norovirus, called GII.17[P17 ...

And if you’re especially particular about having fresh breath and clean teeth, you’re probably using mouthwash, too. But according to New York City-based dentist Dr. Azadeh Akhavan, most people might ...