A Wikipedia search for "headrest" revealed "head restraint". I don't know about you, but head restraint sounds rather ominous to me!

The first patent for "headrest" was granted in 1921; the US didn't mandate them to be installed in all new cars until 1969, but only in the front seats. I guess those passengers in the back didn't matter. And what about people who ride on school or city buses? Anyway, before I go off in a completely different direction than the one I intended...

You've taken care of the driver's seat and you've appropriately adjusted the steering column. You've also added blind-spot mirrors and changed your interior rear view mirror.

Is your headrest adjusted to the proper height? If not, please ensure that it is; the head rest/restraint is there to help you minimize the effects of whiplash. If it is positioned properly, it can also help you maintain good posture while driving. I am surprised at the number of drivers I still see who have not pulled up their headrest!

As I was meandering Gretel-like down the gingerbread internet trail, I came across this innovative type of headrest which sounded like a great idea. I'm not so sure though, after reading the comment.

Do you have a car with an active headrest? Do you agree with LPina2mi?