To drive drowsy or tired state is unsafe.
№1. It is necessary to get enough sleep before you travel by car, especially if it is planned on a long distance. If you need to go during the day, you can even just 20 minutes to take a nap before leaving.
№2. To stay alert behind the wheel, you should try to give up heavy, unhealthy and sugary food before the trip and during it. Body spends a lot of energy to digest this food, which leads to sleepiness.
№3. Before the trip is best to eat something low in sugar and high in protein. This gives the body the energy needed for wakefulness and welding of a small amount of food.
№4. A good way to ward off drowsiness behind the wheel - it is a conversation with a passenger. Therefore, long-distance is better to go in the company of someone.
№5. Useful activity - charging and walk. It is not necessary for a long time at the wheel. It is best to stay awake - it periodically stop, breathe fresh air and walk around the car.
Also read about snack on the way: 4 useful ideas