When your organs don’t move well then they won’t function well. When tension builds around a specific region of the abdomen it will begin to negatively affect our neural access to that region. For example, the stomach contains proportionally more vagus nerve innervation compared to other organs. If your stomach doesn’t move well (possibly resulting in heart burn, pain with eating, etc.) then you will not be able to fully access the extent of the vagus nerve innervation in that area, directly impacting that crucial communication highway with the brain.
Additionally, organ restrictions often result in reduced blood flow to that organ or surrounding structures. A reduction in blood flow to the gut will negatively influence neurotransmitter production, limiting the specific chemicals the brain needs in order to communicate efficiently.