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.
Normal Sleep in Adults, Infants, and the Elderly. Normal sleep is divided into nonârapid eye movement (NREM) and rapid eye movement (REM) sleep. NREM sleep is further divided into progressively deeper stages of sleep: stage N1, stage N2, and stage N3 (deep or delta-wave sleep). As NREM stages progress, stronger stimuli are required to result in an awakening.