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 Future of What the vinyl due to length. In a favorable review, AllMusic's John Bush commented: "Taking their punk heritage from the Buzzcocks, Unwound write grinding, but tuneful songs. Most tracks rumble with a wandering bass while guitar fuzz coats the works. The vocals are intense, usually screamed. One atypical touch is the closer, a hypnotic quasi-ambient organ piece". In a mixed review, Jem Aswad of "CMJ New Music Monthly" praised the opening track, but criticized the album's consistency. The album's title inspired the name of Brooklyn synth band Future of What. The Future of What The Future of What is the fourth