This is the study conducted by an assistant professor of neurosurgery suggested that the head rest in your car may hold the key to better safety.
Like what we have seen on the recent years of Formula 1. The organizer has added many safety features in the sports and one of them is the head restraint. It work some what like a safety catch to hold on the position of our head when there is a collision in place. During that course, they have multipoint safety seat belt to restraint the body torso. And the helmet will be held by the restraint belt.
We do not have wear helmet in normal driving but at least the head rest must be place in the right position to absorb the impact when a collision occur. Continue here..