Resting Heart Rate, Heart Rate Variability: Is Q1 2023 Better Than 2022?

A heart rate variability graph and diagnostic feature is built into all AxcitonX polygraphs if you have access to such equipment. Plus if you wish it can search entire cohorts of thousands of polygraph subjects for those with unhealthy cardio waveforms. I use it in my research. My cardio samples at 1000 spa.