The DRS stands for Drag Reduction System, which enables a car to open its rear wing to limit the downforces on the car. This increases the car's theoretical performance and in theory facilitates passing.
The surgical treatments for obstructive sleep apnea include nasal surgery, palate surgery (including uvulopalatopharyngoplasty [UPPP]), upper airway stimulation therapy, tongue reduction surgery, genioglossus advancement, maxillo-mandibular advancement, tracheostomy, and bariatric surgery.
If you have been diagnosed with sleep apnea, you have likely been introduced to at least one of the possible treatment options. The most common (and effective) therapy is continuous positive airway pressure (CPAP). You may also be curious to know the difference between two similar treatment options: CPAP and BiPAP (or bilevel) therapy. Discover more information about these therapy devices and which one might be right for you.