Bruxism bruxism), but also possibly grinding, and is often associated with other semivoluntary oral habits such as cheek biting, nail biting, chewing on a pen or pencil absent mindedly, or tongue thrusting (where the tongue is pushed against the front teeth forcefully). There is evidence that sleep bruxism is caused by mechanisms related to the central nervous system, involving sleep arousal and neurotransmitter abnormalities. Underlying these factors may be psychosocial factors including daytime stress which is disrupting peaceful sleep. Sleep bruxism is mainly characterized by "rhythmic masticatory muscle activity" (RMMA) at a frequency of about once per second, and also with
Habitual residence Habitual residence In conflict of laws, habitual residence is the standard used to determine the law which should be applied to determine a given legal dispute. It can be contrasted with the law on domicile, traditionally used in common law jurisdictions to do the same thing. Habitual residence is less demanding than domicile and the focus is more on past experience rather than future intention. There is normally only one habitual residence where the individual usually resides and routinely returns to after visiting other places. It is the geographical place considered "home" for a reasonably significant period of time. The