NHK Gatten! 4-volume set for sale. * 2014 Autumn Issue: Rejuvenate with Bone Muscle Strength * 2016 Summer Issue: Time-Saving Muscle Training Techniques * 2017 Summer Issue: Lower Blood Sugar with Heel Drops! * 2017 Autumn Issue: Healthy Longevity Without Suffering! My mother bought these at her home. The sealed pages are still intact, but there are writings on all volumes on the brain training pages. I tried to erase the pencil markings, but the traces remain. There are no tears. Magazines featuring health methods related to lowering blood sugar and bone hormones. NHK Gatten Lowering Blood Sugar Bone Hormones Health Methods Stretching Intestinal Environment High Blood Pressure Muscle Training Thank you for viewing.