If you find yourself absently and happily chewing away at a couple ice cubes after you’ve finished a drink, you’re not alone. There are many who enjoy chewing ice not just incidentally, but as a matter of habit.

It can be oddly satisfying to crunch your way through an ice cube. And, in fact, there may be a serious medical condition that is causing you to do so. (Be sure to check with your doctor if you have concerns.) But it is also dangerous to your teeth.