Also, you need to set the temperature to be cool. It is because when you set the temperature to be warm; this only makes you to easily get sleepy. So, keep the temperature inside your car to keep cool.Thirdly, try to stop at least every two or three hours to stretch. You can go for walking around for several minutes until you feel fresh again. This can really help you to stay awake and avoid falling asleep while you are driving.More
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over, if it is possible, ask someone else to drive when you feel that you cannot hold from getting sleepy. But if it is impossible, you can stop your car in safe area and you can have a short sleep until you feel fresh and ready to drive again..
Source:
http://ezinearticles.com/?Tips-to-Stay-Awake-While-Driving-During-a-Road-Trip&id=3695200
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