Week two, pull up top of spine, day five movement. Just like last week. This simple exercise helps integrate components of previous exercises into one movement. by loosening, lengthening and strengthening certain parts of the neck you improve mobility, which, as a species humans were designed to possess. After this exercise, see if you notice an improvement in range of movement and fluidity. Compare the quality of the movement to before doing the exercise as well as how you felt last week.