People can clench and grind without being aware of it. It can happen during both the day and night, although sleep-related bruxism is often a bigger problem because it is harder to control. There is some disagreement about the cause of bruxism. Daily stress may be the trigger in many people.
The Blue Jay has a very large range, extending to around 6,700,000 square kilometers. It prefers a boreal temperate, subtropical, tropical forest ecosystem and is native to North America, Saint Pierre, and Miquelon.
What is a Bluebird ? The Bluebird is a member of the turdidae or thrush family. Three species occur in North America: the Eastern Bluebird, sialia sialias; the Mountain Bluebird, sialia currucoides; and the Western Bluebird, sialia mexicana.