Heart Coherence

I learned about something called Heart Coherence ten years ago, and I think it's amazing. So: hearts beat differently depending on different emotions. Yes, I always knew that my heart beat faster when I was scared or angry, and slower when I wasn't, but there is so much more to it than that.  

HeartMath wrote:In contrast, positive emotions send a very different signal throughout our body. When we experience uplifting emotions such as appreciation, joy, care, and love; our heart rhythm pattern becomes highly ordered, looking like a smooth, harmonious wave (an example is shown in the figure below). This is called a coherent heart rhythm pattern. When we are generating a coherent heart rhythm, the activity in the two branches of the ANS is synchronized and the body’s systems operate with increased efficiency and harmony. It’s no wonder that positive emotions feel so good – they actually help our body’s systems synchronize and work better.

There can be heart coherence between two people in love to the extent that their heart rates actually synchronize.   (This can happen with people and beloved pets too!) I have personally experienced this--pretty nifty!