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In the meantime, or if your grinding seems to be associated with periods of high stress or poor sleep, an over-the-counter mouth guard might help as a short-term solution (two weeks to a month).

This was a year whose high points included Joan Jonas’s luminous survey, the extravaganza “PST ART,” and the 24-karat beauty of a show “Siena: The Rise of Painting, 1300-1350.” By ...

Hibernation allows many animals to time-travel from difficult times to plenty. Could humans learn how to do it too? It was thought that science could tell us about the origins of the Universe. Today ...