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.
If your teeth grinding persists, you should go in to see a dentist as chronic teeth grinding can result in fracturing, loosening, or loss of teeth. If you grind your teeth too consistently, you may even need bridges, crowns, root canals, implants, partial dentures, or even complete dentures.