We all know the ritual of unwrapping a stick of gum before a big date, a job interview or to stay awake during a college lecture or afternoon slump. After all, gum is the ultimate multitasker – ...

London - Most of us don’t think twice about it, but chewing - mastication - has implications for our health. The way we chew, for instance, can alter our digestion, teeth and even our face shape. And ...