The overdiagnosis of sleep apnea is a topic of continuous discussion, especially when minor instances are found through home sleep tests and increased screening. Expanded diagnostic criteria, according to some specialists, may diagnose patients with obstructive sleep apnea (OSA) even when they have few symptoms, which would result in needless therapy. Moderate to severe OSA, however, can lead to major health problems if left untreated. CPAP and other treatments are still common, but to treat lingering daytime drowsiness, doctors may prescribe drugs like Modvigil 200 (modafinil).