Patients who snore or have other symptoms of sleep apnea often undergo testing in a sleep laboratory to measure the number of breathing pauses and arousals that occur while they slumber. But doctors find these tests do not effectively predict daytime consequences suspected to arise from sleep apnea, such as sleepiness in adults or hyperactivity in children.
Now, neurologists at the University of Michigan Health System and engineers at Altarum Institute in Ann Arbor, Mich., have discovered evidence that the disruption of sleep in sleep apnea may be much more frequent than the breathing pauses, or apneas, themselves.
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