Maintaining alertness while driving Protect yourself from glare and eyestrain with sunglasses Keep cool by opening the window or using the air conditioner Avoid heavy foods Be aware of downtime during the day Have another person ride with you, and take turns driving Take periodic breaks – about every 100 miles or 2 hours during long trips Stop driving and get some rest or take a nap Caffeine consumption can increase awareness fora few hours, but do not drink too much. It will eventually wear off. Do not rely on caffeine to prevent fatigue Avoid drugs. While they may keep you awake fora while, they won’t make you alert. If you are drowsy, the only safe cure is to get off the road and get some sleep. If you don't, you risk your life and the lives of others.