To prevent drowsiness during continuous driving on interstate roads, drivers should:

Keeping your eyes constantly shifting or changing focus can help combat drowsiness while driving. This practice encourages drivers to stay alert by actively engaging their vision and attention. By frequently moving their gaze around, drivers can help maintain their concentration on the road and their surroundings, making it less likely for them to drift into a drowsy state.

Other strategies, like listening to loud music or taking caffeine breaks, may help temporarily but are not guaranteed to keep a driver fully alert over long periods. Reducing speed, while it may seem like a safety measure, does not inherently address drowsiness and could lead to other issues on the highway. Thus, actively maintaining visual engagement is a more effective way to prevent fatigue when driving long distances on interstates.