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, ...

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 ...