If you have never heard about the HeartMath Institute, wander over and immerse yourself a while in its latest research findings on heart intelligence.
The mission of HeartMath Institute is to help people bring their physical, mental and emotional systems into balanced alignment with their heart’s intuitive guidance. This unfolds the path for becoming heart-empowered individuals who choose the way of love, which they demonstrate through compassionate care for the well-being of themselves, others and Planet Earth.
You could also download this free e-book I just discovered. It looks fascinating.