Stress or “fraying” of the “high voltage” heart nerves (right and left bundle branch) is often asymptomatic if not accompanied by other heart muscle performance clues. Here is an early screening for nerve issues that might affect heart performance. Your cardio-doctor can test via medical echo-cardiogram (a non-invasive; no nuclear, radioactive dye injected into your body) stress test. Here is a quick screening tool to help clinicians determine if nutritional nerve support would be of benefit. Reprint rights universally granted.