ScienceDaily:

Extended Wakefulness, Combined With Alcohol, Severely Impairs Driving Performance Extended Wakefulness, Combined With Alcohol, Severely Impairs Driving Performance Science Daily — The combination of extended wakefulness and low-dose alcohol has significant adverse effects on a person’s ability to drive, and elevates the risk of getting into a vehicular accident, according to a study published in the October 1 issue of the journal Sleep. The study, authored by Mark E. Howard, PhD, of the Institute for Breathing and Sleep in Heidelberg, Victoria, Australia, focused on 19 volunteer professional drivers, who participated in a driving simulation and the Psychomotor Vigilance Task.