There's a good chance someone you meet on the road is driving drowsy.
A new study from the Center for Disease Control finds 1 in 24 adults admit to falling asleep behind the wheel.
Health officials with the CDC actually think the number of drivers who fall asleep is probably higher than 4 percent. That's because some people don't realize when they nod off for a second or two behind the wheel.
"You can't drive sleepy, I mean sometime your eyes are wide awake, but you can't see anything," said Harry Henderson.
"I even went through a state one time and wasn't sure the next day when I woke up exactly what state I was in," said Janet Ross.
"I just like zoned out completely, like I don't know what just happened, times when I wasn't even you know drunk, or anything," said Andrea Steele.
Most people understand the dangers of driving drunk, but may not realize driving drowsy is just as bad.
Deb Beebe with the Quincy Police Department's Pro-Act Unit says there are numerous warning signs you should look for if you think you're getting sleepy behind the wheel.
"When you can't remember the last few miles that you just drove, you hit a rumble strip or drift off your lane," said Beebe.
The new CDC study found drowsy driving was more common in men, people ages 25-34, and those who averaged less than six hours of sleep each night.
Beebe says something else that could make you sleepy at the wheel is blasting your heat in the winter time, which causes drivers to get too cozy making it easier to fall asleep.
"It is more common than people think they're not only putting themselves at risk but they're putting the lives of others at risk when they continue to drive while they're sleepy," said Beebe.
Another study from the Archives of Internal Medicine Journal showed there was no difference between driving sleepy or drunk. Both doubled the risk of causing a car accident.
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