I heard a story that this didn't get into the original edition of Gray's Anatomy because the publisher fell out with the only anatomist that knew about this at the time. Anyway we now know that there is a huge amount of neural communication between the heart, head and gut. You only have to notice some of the things we say - ' I had a gut feeling', 'I knew in my heart,' - to realise how embedded this is within our human awareness.
I want to recommend to you
an amazing book
that tells you all about this.
There are so many purple passages in it that it's hard to select one, but here's a taste -
'...when the three brains, the three 'souls' or intelligences, are out of alignment or are fighting with each other, they cause psychological and emotional problems. Incongruence between the three brains leads to undermining success and creates aberrant behaviours and outcomes.'
Better still, the book tells you what to do about it, so that all three brains work together as well as possible.