Drowsy driving is as dangerous as drunk driving. The AAA Foundation for Traffic Safety estimates that each year drowsy driving causes at least 328,000 motor vehicle accidents.
Many of these crashes–at least 6,400 each year–are fatal. No one is safe when you drive drowsy.
Teens are especially at risk. Drivers between the ages of 16 and 24 are 80% more likely to be involved in a drowsy driving crash than adults who are 40 or older.
There is no drowsiness test to measure how sleepy you feel. And research shows that we often overestimate our level of alertness. There are, however, things to watch for:
Turning the radio up or rolling down the windows may help for a few minutes if you are drowsy, but will not keep you from falling asleep behind the wheel.