Monitor your Heart Rate and improve your Cardiorespiratory Coherence with the Breathing Guide. Why is this important to you? REDUCE STRESS, IMPROVE PERFORMANCES, BE PREPARED FOR ACTION Slow breathing exercises, performed with a breathing cycle of 10s (cardiorespiratory resonance frequency), have been shown to help reduce stress, improve performances and make you feel more relaxed and ready for action. But how do you know you are actually doing your breathing exercise well? ARE YOU DOING WEL