Final answer:
Be especially alert for sudden maneuvers of other vehicles to ensure health and safety when driving. These quick reactions, often occurring in the blink of an eye, are controlled by your nervous system and are critical in avoiding potential accidents or injuries.
Step-by-step explanation:
Be especially alert for sudden maneuvers of other vehicles. This sentence is typically used in the context of driver's education to remind drivers to be cautious and ready to respond to unexpected movements by other drivers or pedestrians. When you're driving, incidents requiring quick reactions can occur in the blink of an eye. For instance, imagine driving into a parking lot when a skateboarder appears suddenly, requiring you to respond instantly by braking and steering to avoid a collision, all thanks to your nervous system's rapid response.
Other examples include being vigilant when you see a woman pushing a baby stroller, two cars at an intersection where one starts to honk aggressively, or a scared dog running towards the street. Each scenario requires attentiveness and the potential for sudden action. The importance of such vigilance and response readiness relates to health and safety when operating a vehicle.