
I graduated in Medicine from The University of Edinburgh back in 1978. During my medical education and training I was taught about the heart. I remember we were taught about the heart muscle, the system of electrical conduction which produced the rhythm of beats, about the heart valves and how to diagnose different valve problems according to the sounds we could hear when we listened through our stethoscopes. I learned how to administer and read an “ECG” – that series of spikes and waves you see on heart monitors and printed out on long strips of paper.
I didn’t learn that there was a neural network around the heart, nor what that might do. Back then if we thought about it all, the heart was a sophisticated pump for keeping the blood flowing around the body, and phrases like “heart felt”, “broken heart”, “having a heart to heart conversation”, and so on, were considered flowery or poetic metaphors.
I know better now.
We now know that there are sophisticated networks of nerve cells around all the hollow organs of the body, but especially around the heart and the gut. We also know that there is a LOT of communication between the heart and the brain, and that, contrary to what we used to believe about those connections, most of the flow of information is from the heart TO the brain, not the other way around.
We’ve also learned that the beating of the heart creates electromagnetic waves which radiate out around the whole body, and can even be detected outside the body. Those rhythmic waves seem to have a role to play in co-ordinating, or “integrating”, a wide range of functions of the whole body, and even connect with, influence and can be influenced by the waves radiating from other peoples’ hearts.
It turns out that those metaphors we use have a biological, neurological, physical basis in the person. We have a certain kind of “heart intelligence” which allows us to “know” and to “communicate” from one heart to another.
Isn’t that amazing?
Since I came to understand all that I’ve realised just how important it is for we humans to have a “heart focus” – to try to connect to others and communicate with others “from the heart”, not just from the rational brain.
We all love to find heart shapes in Nature, don’t we? Like this little flower in today’s image. Or in the bark of a tree, the shape of a stone, or in a work of art. Why is that, do you think?
I think it speaks to the core importance of everything we think of when we use these heart metaphors in our language, in our poetry and in our songs.
After all, who thinks it’s a good idea for someone to act in a “heartless” way?
Not me!
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