What should you do if you feel drowsy while driving?

Feeling drowsy while driving impairs your ability to focus and respond to road conditions, much like alcohol impairment. The most effective course of action in this situation is to pull over and take a break. This allows you to rest, regain alertness, and reduce the risk of an accident. Taking a break can involve napping for a short time, stretching, or engaging in light physical activity, which can significantly improve your alertness.

Turning up the radio, drinking coffee, or opening the window may provide temporary distraction or mild stimulation, but these methods do not address the underlying issue of fatigue and can lead to a false sense of security. Only eliminating the drowsiness through rest can ensure that you're fit to continue driving safely.