Bruxism occasional tooth grinding. It has been shown that the majority (86%) of sleep bruxism episodes occur during periods of sleep arousal. One study reported that sleep arousals which were experimentally induced with sensory stimulation in sleeping bruxists triggered episodes of sleep bruxism. Sleep arousals are a sudden change in the depth of the sleep stage, and may also be accompanied by increased heart rate, respiratory changes and muscular activity, such as leg movements. Initial reports have suggested that episodes of sleep bruxism may be accompanied by gastroesophageal reflux, decreased esophageal pH (acidity), swallowing, and decreased salivary flow. Another report suggested
The Grinding Wheel The Grinding Wheel The Grinding Wheel is the 18th studio album by American thrash metal band Overkill, released on February 10, 2017. It is the last Overkill album with drummer Ron Lipnicki, who left the band shortly after its release and was replaced by Jason Bittner (formerly of Shadows Fall and Flotsam and Jetsam) for the album's tour and its follow-up "The Wings of War" (2019). Vocalist Bobby "Blitz" Ellsworth said about the album's style: "At the end of the day Overkill is Overkill. Our trademark is that we are always recognizable on every release. For the three decades we