Which is a common treatment method for obstructive sleep apnea?

Continuous positive airway pressure (CPAP) is a widely recognized and effective treatment method for obstructive sleep apnea (OSA). This condition involves repetitive episodes of airway obstruction during sleep, which can lead to fragmented sleep and various health complications.

CPAP works by delivering a steady stream of air through a mask worn over the nose or mouth, keeping the upper airways open during sleep. This prevents the collapse of the throat that occurs when the muscles relax, thus allowing for continuous breathing and uninterrupted sleep. As a result, patients often experience improved sleep quality, reduced daytime sleepiness, and decreased risk of associated health issues such as hypertension and cardiovascular problems.

The other treatment options listed do not specifically target the underlying airway obstruction that characterizes OSA. Cognitive behavioral therapy focuses on addressing behavioral aspects of sleep and may be useful in managing insomnia or other sleep disorders, but it does not address the physical obstruction of the airway. Oxygen therapy, while it can improve oxygen levels for patients with respiratory issues, does not prevent airway collapse. Light therapy is primarily used to treat circadian rhythm disorders and has no direct impact on obstructive sleep apnea.