Sleepy driving highly prevalent among college students
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A high prevalence of sleepy driving is reported among college students, according to a research abstract that will be presented on Monday at SLEEP 2008, the 22nd Annual Meeting of the Associated Professional Sleep Societies (APSS).
The study, authored by Diana Dolan, of Sleep Medicine Associates of Texas, focused on 263 students at the University of North Texas, who completed a survey that included demographics and sleepiness measures. Students were asked to respond “yes” or “no” to the items: “Have you ever fallen asleep at the wheel"” and “Have you ever gotten into a wreck because you were sleepy"”
According to the results, 17 percent of students reported falling asleep behind the wheel, while 2.2 percent actually had accidents related to falling asleep. Importantly, 67 percent of those who reported accidents had significant levels of daytime sleepiness. Also, 59 percent of those who reported falling asleep at the wheel were found to have significant sleepiness. Students having difficulty driving due to sleepiness reported fewer hours of sleep than those without difficulty.
“The results of the study identify a surprisingly high prevalence of having fallen asleep while driving among college students, and specifically highlight the increased risk of driving among those with significant sleepiness,” said Dolan.
Drowsy driving, the dangerous combination of sleepiness and driving, or driving while fatigued, while operating a motor vehicle, is becoming a growing problem in the United States.
Drowsy driving results in a slower reaction time, decreased awareness, impaired judgment and an increased risk of getting involved in an accident, resulting in unnecessary deaths or injuries to innocent people. Nearly nine out of every ten police officers responding to an AAA Foundation for Traffic Safety Internet survey reported they had stopped a driver who they believed was drunk, but turned out to be drowsy. The survey was coordinated with the National Highway Traffic Safety Administration (NHTSA),
There are two main causes of drowsy driving:
* Sleep restriction
Persons getting less than the recommended seven-to-eight hours of sleep each night are more likely to feel tired the following day, which can ultimately affect their cognizance behind the wheel. Not getting enough sleep on a consistent basis can create “sleep debt” and lead to chronic sleepiness over time. While some factors, including working at a job that requires long hours and familial responsibilities, are beyond a person’s control, other reasons for sleep restriction represent a lifestyle choice. This includes sleeping less to have more time to work, study, socialize or participate in other activities.
* Sleep fragmentation
Sleep fragmentation causes an inadequate amount of sleep and can negatively affect a person’s functioning during the daytime. Sleep fragmentation can have internal and external causes. The primary internal cause is sickness, including untreated sleep disorders. External factors that can prevent a person’s ability to have a full, refreshing night of sleep include noise, children, bright lights and a restless bed partner.
Drowsy driving is the direct cause of approximately 100,000 police-reported crashes annually, resulting in an estimated 1,550 deaths, 71,000 injuries and $12.5 billion in monetary losses, according to NHTSA.
It is recommended that adults get seven to eight hours of nightly sleep.
The American Academy of Sleep Medicine (AASM) offers the following ways to avoid becoming drowsy while driving:
* Get enough sleep
AASM recommends that adults get seven-to-eight hours of sleep each night in order to maintain good health and optimum performance.
* Take breaks while driving
If you become drowsy while driving, pull off to a rest area and take a short nap, preferably 15-20 minutes in length.
* Consume caffeine
Caffeine improves alertness in people who are fatigued.
* Do not drink alcohol
Alcohol can further impair a person’s ability to stay awake and make good decisions. Taking the wheel after having just one glass of alcohol can affect your level of fatigue while driving.
* Do not drive late at night
Avoid driving after midnight, which is a natural period of sleepiness.
Those who suspect that they might be suffering from a sleep disorder are encouraged to consult with their primary care physician or a sleep specialist.
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The annual SLEEP meeting brings together an international body of 5,000 leading researchers and clinicians in the field of sleep medicine to present and discuss new findings and medical developments related to sleep and sleep disorders.
More than 1,000 research abstracts will be presented at the SLEEP meeting, a joint venture of the AASM and the Sleep Research Society. The three-and-a-half-day scientific meeting will bring to light new findings that enhance the understanding of the processes of sleep and aid the diagnosis and treatment of sleep disorders such as insomnia, narcolepsy and sleep apnea.
SleepEducation.com, a patient education Web site created by the AASM, provides information about various sleep disorders, the forms of treatment available, recent news on the topic of sleep, sleep studies that have been conducted and a listing of sleep facilities.
Contact: Kathleen McCann
kmccann@aasmnet.org
708-492-0930
American Academy of Sleep Medicine
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