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Hungover driving can be as bad as drink driving

By Western Daily Press  |  Posted: December 10, 2013


Driving with a heavy hangover could be as dangerous as drink driving.

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A hangover following a night of heavy drinking can impair driving performance as much as driving under the influence of alcohol, according to new research.

Scientists at universities in the UK and the Netherlands found that the effects of a night’s heavy drinking last longer than a measurable blood alcohol concentration and that hangover immunity is largely a myth.

In research conducted at the University of the West of England, participants who had been drinking the night before undertook a 20-minute simulation of driving in a mixed urban and rural setting.

Significant increases in speed variability, reaction time, driving errors and deviation from driving position were recorded when the participants were hung-over, the study found.

Associate Professor Chris Alford, who led the Bristol-based study, said that motorists should be warned of the dangers of driving while hungover.

“This was a naturalistic design of study, aiming to better reflect what happens in real life when people go to work the next day after drinking,” he said.

“The significant impairments seen here, after a relatively short driving duration reflecting a typical commute to work and using a more mentally demanding driving environment, represent a new finding.

“This simulation represented a situation many people can relate to. They may already be aware of not driving home after a night out drinking, but we also need to advise them to plan for the next day so they won’t be driving to work impaired.”

In the larger, complementary Dutch study at Utrecht University, healthy volunteers participated in simulated one hour motorway driving tests the night after a drinking session averaging about ten alcoholic drinks. The results showed a hangover could significantly increase the number of lapses in attention.

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