Here is where the rubber meets the road. Measuring and tracking yout HRV over time is one of the strogest tools for predicting hralth risk and assuring longevity. It is plugging into your nervous system and giving real time bio-feedback on what your body thinks about your current lifestyle. Its simple to do and opens your mental awarenss about your daily habits. Measure - adjust - remeasure - re-adjust. Thats how life works.