I recently read a book called "Born to Run," and it talks about an indigenous tribe in Mexico that are always the top runners in ultramarathons.. 400 miles running in sandals! They talk about 3 specific principles that I'll be going over in the video. #flowtrainingprinciples #calmandrelaxed #holisticapproach #betheflow #endurance #stamina #runningmotivation #fitnessmotivation | Mike Chang