Hangover a Highway Hazard

Are you driving with a ‘killer’ hangover?

By Sean Kenniff, MD 

  Most Americans are aware that drinking and driving is dangerous and often deadly. Alcohol is involved in roughly one-third of all U.S. traffic-related deaths; 36 people die each day and another 700 people are injured according to the CDC. But what happens the morning after a night of boozing? Recent studies suggest driving with a hangover is a hazard on the road. 

  The alcohol hangover is caused by a constellation of biological changes that occur during alcohol intoxication and its subsequent withdrawal. There is a rise in acetaldehyde in the bloodstream, along with hormonal fluctuations, dropping sugar levels, inflammation, dehydration, and abnormal cardiovascular activity. Under the influence of alcohol, sleep structure is also profoundly altered. All of this creates the typical hangover syndrome of headache, nausea, fatigue, muscle aches, thirst, shakiness, poor attention and difficulty with concentration. 

  But does a hangover impair driving? 

  Using a car simulator, scientists from Brunel University in the U.K. tested the driving performance of eleven students before and after a night of heavy drinking. They found, when hungover, the students drove an average of ten miles per hour faster without realizing even it, and their traffic violations doubled. They drove erratically; swerving in and out of lanes, driving through red lights and stop signs, and even hitting an occasional pedestrian. 

  We shouldn’t be complacent the morning after, and driving ‘after the influence’ with a hangover can also be very dangerous. Graham Johnston of RSA, a British insurer, said in a press release. 

  It’s important to note all of these hungover students passed a breathalyzer examination before driving in the simulator. 

  Several other studies have documented similar impairments in psychomotor abilities during the hangover period, and more research is being conducted to confirm the findings. Time is the only cure for a hangover, along with drinking plenty of fluids and eating nutritious meals. So remember the next time you have a killer hangover call a cab, or take mass transit.