SUNDAY, May 18 (HealthDay News) -- Flying on commercial flights may put people who suffer from obstructive sleep apnea at greater risk of cardiac stress, Australian researchers report.

Sleep apnea is a common condition in which breathing stops or becomes very shallow. Obstructive sleep apnea is the most common form of the condition. When it occurs, people can't get enough air through their mouth or nose, and the levels of oxygen in the blood may drop.

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.

TUESDAY, April 22 (HealthDay News) -- Surgery to remove nasal obstructions improves quality of life for people with obstructive sleep apnea (OSA) and reduces symptoms of nasal blockages, according to a study by researchers in Taiwan.