What are the dangers of "highway hypnosis"?

What are the dangers of "highway hypnosis"?

Reed Berry (Driving Expert) gives expert video advice on: What are the dangers of "highway hypnosis"?; How do I avoid "highway hypnosis"? and more...

Highway hypnosis is very dangerous because it slows your reaction time. When you have highway hypnosis, you're not as focused on driving as you were earlier, and so anything can happen. Somebody may change lanes, another hazard may appear in front of you, and you just won't be able to react quickly in time to avoid a collision.