Which of the following can impair driving ability?

The use of certain over-the-counter drugs can significantly impair driving ability due to their potential side effects. Many over-the-counter medications, such as antihistamines for allergies or cold medications, can cause drowsiness, dizziness, slowed reflexes, and impaired judgment. These effects can make it difficult for a driver to maintain focus, respond to traffic signals, judge distances, and react to sudden changes in their driving environment, all of which are critical for safe driving. It is essential for drivers to be aware of the ingredients in over-the-counter medications and understand how they might affect their alertness and coordination on the road.

In contrast, drinking water, listening to music, and eating snacks typically do not impair driving ability and can even contribute to a driver’s comfort and concentration when done in moderation. Staying hydrated is vital for maintaining overall awareness, while music can help keep drivers alert and focused. Eating snacks, as long as it doesn't distract from driving, generally has no adverse effects on driving performance.