It's such a common habit, yet most of the time we never know we're doing it. Not cracking your knuckles or biting fingernails, but intense clenching and grinding of your teeth—known in dental terminology as bruxism. The reason this phenomenon goes unnoticed so often is that "grinders" usually perform when they're sleeping. Most research agrees that nighttime clenching is just a way of releasing tension. From what we see in [...]