Juan F.Masa, of the San Pedro de Alcantara Hospital in Caceres, Spain, and colleagues report in the October issue of the American Journal of Respiratory and Critical Care Medicine.

• 与较清醒的司机相比，困倦的司机常常有肥胖、打鼾、高血压和早晨困倦的表现，而且他们也常有睡眠紊乱，如睡眠性呼吸暂停，一种晚上出现短暂的呼吸停止的疾病。