part 2 is better, and you most likely will have to push harder than this chiro who's demonstrating.
/www.muscle-joint-pain.com/pain/headaches/headache-back-of-head/I'm on a work project that's requiring a lot of looking down much of the work day for two weeks, thus my neck is getting tired and stiff making tension headaches- I've done whats in the above vid for many years since it works.
Ill be glad when im on to a new and more "neck friendly" project in a while. till then, this is my savior.