NEW YORK (Reuters Life!) - Liars might think they are good at covering up their deceit but a new Canadian study shows there's one thing they can't control that will give them away -- flashes of emotion in their faces.

Researchers at Dalhousie University's Forensic Psychology Lab in Halifax conducted the first detailed study on the secrets revealed when people put on a false face or inhibit various emotions, and found their faces told the truth.

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WEDNESDAY, April 23 (HealthDay News) -- A quick, self-administered test to identify surgical patients who may have potentially life-threatening obstructive sleep apnea (OSA) has been developed by a team of Canadian anesthesiologists.

People with OSA experience repeated episodes of breathing cessation while they sleep. The disorder affects 2 percent to 26 percent of the general population.