When ice is swirling around the bottom of your cup, it can be tempting — and satisfying — to crunch your way through it. But there’s a difference between munching on the odd cube here and there and ...

Add Yahoo as a preferred source to see more of our stories on Google. Biting fingernails, gnawing on pen caps and pencil erasers or chewing ice may be your way to deal with boredom or relieve stress, ...

While some people have heard of pica - the mental health condition that causes people to want to chew or eat substances of no nutritional value such as paper, clay or dirt - fewer people have heard of ...