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.
When grinding your teeth is caused by sleep apnea, this is the preferred treatment. If anxiety or stress is believed to be the cause of your grinding, then behavioral management is a must. Relaxation techniques, meditation and psychoanalysis can help manage the stress and anxiety.