A rear-end collision occurs when one vehicle crashes into the back of another vehicle. This type of accident often happens when the car in front suddenly stops or slows down, and the following driver does not have enough time to react. Common causes include distracted driving, tailgating, and poor weather conditions. These collisions can result in various injuries, particularly to the neck and back, due to the sudden impact. Seat belts and airbags can help reduce the severity of injuries. Drivers are encouraged to maintain a safe following distance to minimize the risk of rear-end collisions.