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 nonsurgical treatments for obstructive sleep apnea include behavior therapy, including weight loss, medications, dental appliances, continuous positive airway pressure, bi-level positive airway pressure, and auto-titrating continuous positive airway pressure.
CPAP is Continuous Positive Airways Pressure. It is the most effective way to treat sleep apnoea. If you have Obstructive Sleep Apnea, your Sleep Specialists may give you a range of treatment choices and CPAP may be one of these.