Dr. Fred Shaffer Joins the Show (Replay)
Heart Rate Variability Podcast - Een podcast door Optimal HRV - Donderdagen
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Dr. Fred Shaffer joins the podcast to discuss his nearly five decades of work with heart rate variability and biofeedback. It is such an honor to have one of the pioneers in HRV as our guest! http://fshaffer.sites.truman.edu/
