Common sense — and the law — tells us not to drive while under the influence. But, even though it can be just as dangerous, there are few laws against driving while sleepy. The National Highway Traffic Safety Administration reports that fatigue driving causes 100,000 accidents a year.

The first step to preventing drowsy driving is to know the signs. If you notice the following signs that you’re too tired to drive, it’s time for a break:

• Excessive yawning
• Inability to keep your eyes open
• Trouble keeping head up
• Drifting between lanes
• You can’t remember the last few miles

To avoid drowsing driving, check out these tips from Sleepdex.org:

• Get a good night’s rest before hittin’ the road.
• Be aware of medications you take that might cause drowsiness.
• Avoid driving late at night.
• If you’re driving with another person, make sure to take turns driving.
• Take plenty of rest stops and breaks.

Tags: driving while drowsy, drowsy driving, fatique driving stats, how to tell if your too tired to drive, sleepy driving tips