LOUISVILLE , Ky., May 16 (UPI) -- Chemicals found in green tea may be able to stave off the cognitive deficits that occur with obstructive sleep apnea, U.S. researchers say.

Lead author Dr. David Gozal of the Kosair Children's Hospital Research Institute at the University of Louisville in Kentucky examined the effects green tea polyphenols, administered through drinking water, on rats that were intermittently deprived of oxygen during 12-hour "night" cycles, mimicking the intermittent hypoxia, known as IH, that humans with obstructive sleep apnea experience.