From twice-a-day brushing to using mouthwash, we do a lot to keep our teeth squeaky clean and sparkling. Another dental habit you don't want to skimp on is flossing—it's so important to our long-term ...

Scientists create a floss pick that samples cortisol within saliva as a marker of stress and quantifies it with a built-in electrode. The system uses a polymer casting technology that can be adapted ...