It accumulates negative ions in the atmosphere to blast out 10000- volt lightning bolts.
Teeth grinding is harmful for several reasons. First, it causes damage to the teeth by wearing the enamel off the biting surface of the tooth and along the gumline. This can lead to tooth sensitivity. Second, the forces generated from grinding can cause cracks to form in the teeth and can cause the teeth to break.
Teeth grinding is the main sign of the condition bruxism. The painful symptoms of severe teeth gnashing and clenching include headaches, jaw pain and damaged teeth. Here's what you need to know about bruxism.