Bruxism during the day. The ICDS-R defined sleep bruxism as "a stereotyped movement disorder characterized by grinding or clenching of the teeth during sleep", classifying it as a parasomnia. The second edition (ICSD-2) however reclassified bruxism to a "sleep related movement disorder" rather than a parasomnia. Alternatively, bruxism can be divided into "primary bruxism" (also termed "idiopathic bruxism"), where the disorder is not related to any other medical condition, or "secondary bruxism", where the disorder is associated with other medical conditions. Secondary bruxism includes iatrogenic causes, such as the side effect of prescribed medications. Another source divides the causes of bruxism
Habitual be possible origin of habitual "be". Habitual be Habitual "be" is the use of an uninflected "be" in African American Vernacular English (AAVE) and Caribbean English to mark habitual or extended actions, in place of the Standard English inflected forms of "be", such as "is" and "are". In AAVE, use of "be" indicates that a subject repeatedly does an action or embodies a trait. In Standard English, the use of (an inflection of) "be" merely conveys that an individual has done an action in a particular tense, such as in the statement "She was singing" (the habitual being "she sings"). It