Why is the middle seating most comfortable on a bus traveling along a bumpy road?

The middle seating on a bus is typically the most comfortable on a bumpy road because it is located closer to the vehicle's center of gravity, which minimizes the effects of the bumps and vibrations. This position reduces the amount of lateral and vertical movement experienced by passengers compared to seats at the front or rear, where motion is more pronounced. Additionally, middle seats are generally less affected by the bus's swaying and bouncing, providing a smoother ride overall.