To prevent drowsiness when driving on an interstate road, what should you do?

Maintaining alertness while driving, especially on long stretches of interstate roads, is vital for safety. Shifting your eyes frequently helps prevent drowsiness by keeping your visual field active and engaged. This practice allows you to scan different areas of the road and your surroundings, which can help keep your mind alert and reduce the likelihood of fatigue setting in. By frequently changing your focus, you are less likely to fall into a monotonous state, which can contribute to drowsiness.

The other options, while they may contribute to a more comfortable driving experience, do not specifically address the prevention of drowsiness as effectively. Adjusting your seat can help ensure you are in a comfortable position, but it doesn't actively engage your mind. Keeping the windows closed may provide a consistent environment, but it doesn't stimulate alertness. Playing loud music might seem like it could help, but it can be a distraction for many drivers and doesn't inherently keep your mind alert in the same way that actively shifting your focus does.