New book Medicine If you pull your chin, your body will change. It's a physical education for adults that eliminates back pain, stiff shoulders and headaches.
※Please note that product information is not in full comprehensive meaning because of the machine translation.
Japanese title: 新書 医学 アゴを引けば身体が変わる 腰痛・肩こり・頭痛が消える大人の体育