Effects of sleep deprivation and low blood alcohol on driving capacities in young people

INTERVENTION: The participants are randomised to one of four conditions. 1. No alcohol intake, no partial sleep deprivation 2. Alcohol intake [blood alcohol concentration (BAC) = 0.03%], no partial sleep deprivation 3. No alcohol, partial sleep deprivation (1 hour less of sleep/night over a one week period) 4. Alcohol (BAC = 0.03%), partial sleep deprivation (1 hour less of sleep/night over a one week period) One follow‐up session is involved for measurement of simulated driving performance. CONDITION: Injury prevention, driving while impaired by alcohol and/or sleep deprived ; Injury, Occupational Diseases, Poisoning PRIMARY OUTCOME: Driving performance on the driving simulator measured at intake and one week following randomization to condition and the partial sleep deprivation induction protocol. SECONDARY OUTCOME: Performance on neuropsychological executive function tasks INCLUSION CRITERIA: 1. Male and female drivers aged 18‐25 years and 30‐34 years, having drunk alcohol in the past 6 months 2. Having driven in the past 3 months 3. Medication‐free (except contraceptives for females) 4. Usually sleeps during regular night‐time hours