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.
You can treat obstructive sleep apnea (OSA) at home if you have mildsleep apnea (5 or fewer apnea episodes an hour). Home treatment for sleep apnea includes: Losing weight. Many people who have sleep apnea are overweight.