This Blog is maintained by J. R. Roy (Sifu) and is designed to demonstrate, archive, journal and publish the material that is practiced and taught by Sifu J. R. Roy. THIS BLOG IS DESIGNED FOR DEMONSTRATION PURPOSES ONLY, DO NOT ATTEMPT ANY OF THESE DRILLS, EXERCISES OR APPLICATIONS WITHOUT A QUALIFIED INSTRUCTOR PRESENT - *All material is copyright and all rights reserved worldwide
Thursday, August 26, 2021
The incredible effects of regular exercise on your brain