Ground down by anxiety

One in 12 people grind their teeth during sleep, a condition called sleep bruxism that is associated with a host of disorders such as daytime sleepiness and anxiety.

In a report in the journal Chest, an international team of researchers quizzed 13,057 people in the United Kingdom, Italy and Germany about sleep problems.

Maurice Ohayon, one of the team at Stanford University School of Medicine, said that the work indicated a link between bruxism and headaches, muscle aches, premature loss of teeth and sleep disruption.