If you feel tired while driving, what should you do until you can stop?

Feeling tired while driving can significantly impair your ability to concentrate and react promptly, which can lead to dangerous situations on the road. Ensuring a supply of fresh air can help to a certain extent; it can create a more alert environment that might help to stave off feelings of drowsiness. Fresh air stimulates the brain and can provide a temporary boost in alertness, making it potentially safer while you navigate to a point where you can stop and take a proper break.

However, it is important to note that simply increasing the airflow will not address the root issue of fatigue. The best solution to fatigue is to take a complete break from driving to rest, stretch, or take a brief nap if needed. Regular, planned breaks during long journeys can help prevent fatigue before it becomes an issue.