What can impair fitness to drive?

Your answer is fully correct because all three factors—fatigue, alcohol and other intoxicants, and certain medicines—can impair driving fitness. According to German traffic rules, being physically and mentally alert is essential for safe driving. Fatigue reduces reaction times and attention. Alcohol and drugs impair judgment, coordination, and concentration and are strictly regulated. Some medications can cause drowsiness or affect cognitive functions, making driving unsafe. Recognizing these impairments helps prevent accidents and ensures road safety.