*Great and silly video my only issue was the head trauma completely ignored the spinal cord and vertebrae that are affected with a head trauma. There is the “Path of least resistance” law of physics which states, a force will travel to the area of least resistance – https://en.wikipedia.org/wiki/Path_of_least_resistance. So when a head trauma occurs the top vertebrae has the least resistance and is automatically affected by any trauma. Even if you hit your tailbone that force travels all the way up to the top. This is why there are chiropractors who specialize in Upper Cervical Chiropractic.