- a break every 100 miles or 2 hours. Do something to refresh yourself like getting a snack, switching drivers, or going for a run.
- Take a nap—find a safe place to take a 15 to 20-minute nap, if you think you might fall asleep. Be cautious about excessive drowsiness after waking up.
- Avoid alcohol and medications that cause drowsiness as a side-effect.
- Avoid driving at times when you would normally be asleep.
- Consume caffeine. The equivalent of two cups of coffee can increase alertness for several hours.
For more information about drowsy driving, visit the National Sleep Foundation's drowsy driving website. Learn more about the study and download the free brochure from the AAA Foundation for Traffic Safety, How To Avoid Drowsy Driving .