3) Chin Tuck, click here.
Many of us have tight cervical extensors. This stretch is difficult for some people not because of the positioning, but because it requires the individual is capable of lying motionless for 2 or more minutes at a time. The benefits from this stretch are simply not possible if the person is constantly moving, because the entire time you are moving the muscles that stabilize and mobilize the neck do not relax and lengthen (the goal of this stretch is to lengthen the cervical extensors).
Video coming soon.