What must you do if you are driving and feel drowsy?

If you are driving and feel drowsy, the best course of action is to pull over and take a break or nap. This is the safest option because driving while drowsy can significantly impair your reaction times, decision-making abilities, and overall coordination, similar to driving under the influence of alcohol. Taking a break allows you to rest and regain alertness, thereby reducing the risk of an accident.

Turning up the radio might provide a temporary distraction, but it is unlikely to combat the physical effects of fatigue. Maintaining comfort through air conditioning adjustments could be helpful in staying alert to some extent, but it does not address the root cause of drowsiness. Continuing to drive in a drowsy state can lead to serious consequences including slowed reflexes, blurred vision, and even falling asleep at the wheel. Prioritizing your safety and the safety of others on the road by pulling over is the most responsible choice in this situation.