Continuous positive airway pressure (CPAP) therapy is a treatment for sleep apnea that uses a constant flow of air to keep the airway open while a person sleeps. To keep machines clean, doctors ...

Share on Pinterest Former 9/11 ground zero cleanup worker Rubiela Arias demonstrates the use of a continuous positive airway pressure (CPAP) device that she uses. Image credit: ED JONES/Getty Images ...

"Since 2008, the president has disclosed his history with sleep apnea in thorough medical reports," White House spokesman Andrew Bates said Wednesday. "He used a CPAP machine last night, which is ...