Bluetooth is one of the most significant modern inventions—we use it all the time. Now, every time you do, you'll think about a guy with bad teeth from Scandanavia.

Dentist Dr. Arash Ravanbakhsh shares five common mistakes people make while brushing their teeth — they lead to weakened enamel, gum damage, and bad breath.

A check mark. It indicates that the relevant content has been reviewed and verified by an expert Our stories are reviewed by medical professionals to ensure you get the most accurate and useful ...