"Extra-hard" chewing gum is being touted on social media as a means of developing a chiseled jawline. This sort of gum is promoted as a gym for "facial fitness," toning and tightening the muscles ...

Young men are buying “Facial Fitness” chewing gum that promises to bulk up their jawlines. But dentists say the products are not particularly effective or safe. By Callie Holtermann A square-jawed ...