Final answer:
A good rule of thumb while driving is to stop and take a break every 100 miles or every 4 hours. This helps prevent fatigue and ensures driver safety on long trips.
Step-by-step explanation:
A good rule of thumb while driving is to stop and take a break every 100 miles or every 4 hours. This is a recommended guideline to prevent fatigue and ensure driver safety on long journeys. Taking regular breaks helps to reduce the risk of accidents caused by driver drowsiness.