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 (bruxism) Introduction. Bruxism is the medical term for grinding the teeth and clenching the jaw. People sometimes grind their teeth without it causing any symptoms or problems. But regular, persistent teeth grinding can cause jaw pain and discomfort and wear down your teeth. It can also cause headaches and earache.