What is the PSR actually measuring?
Both the PSR and the emWave Desktop measure your Heart Rate Variability: the time-intervals between the heartbeats. Whenever we are stressed, these time-intervals become jagged and irregular, sending a chaotic pattern throughout our body. And we feel this: our body becomes tense. HeartMath has done a lot of research on the effect of emotions on our body and when we experience positive emotions such as care, gratitude, appreciation and compassion, those time-intervals in our Heart Rate Variability Pattern become very smooth and sine-wave like. This creates a much more orderly and balanced pattern in our internal systems, creating a state of coherence. We experience this as a more calm, harmonious state.
