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.
The ACP also strongly recommends continuous positive airway pressure, or CPAP. This is typically the first-line treatment for people with sleep apnea, because weight loss can be so hard to achieve. CPAP is a mask or device that fits over the nose and mouth. It blows air into the airways to keep them open at night.