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.
5 Bad Things that can Happen if You Grind Your Teeth. Waking up with a sore jaw, dull headache or earache are all tell-tale warning signs of bruxism, better known as teeth grinding. Bruxism is widespread, affecting 15% of the overall adult population.