Final answer:
Overdriving your headlights is dangerous as it prevents you from stopping within the visible distance, increasing the risk of accidents.
Step-by-step explanation:
Overdriving your headlights at night is dangerous because you cannot stop within the distance you can see. When the vehicle in front of you is within your headlights' range, it limits the time you have to react to obstacles or changes in traffic. This can increase the risk of accidents as you may not be able to safely stop in time.