Adjustable rear wing -. Drag Reduction System (DRS) New FIA moveable bodywork technical regulations for 2011 have allowed adjustment of the rear wing from the cockpit at any time in practice and qualifying, but only when a driver is less than one second behind another car at a pre-determined point on the track during a race. Braking deactivates the device.
The person with sleep apnea is usually unaware of this. The interruption to breathing can occur hundreds of times a night, resulting in markedly fragmented sleep. As a result, people with sleep apnea feel excessively sleeping during their normal waking hours.
The severity of sleep apnea varies. It is thought to be normal for pauses in breathing to occur up to 5 times per hour in adults and once per hour in children. These events may even occur as part of normal sleep stage transitions.