허리와 어깨 통증을 없애주는 5분 척추교정법 

The uncomfortable posture of the modern people has a red light for their spine health. Shoulder stiffness, back pain, neck stiffness and so on. The authors report that all of these causes are due to spinal and pelvic distortions.

And the exercise method that applied the philosophy and principle of chiropractic to solve it. A lot of tips with photos to follow to be healthy....