Likely due to neural reflexes that link specific regions of the body’s exterior to internal organs (viscero-somatic/somato-visceral reflexes), acupuncture can have targeted effects on internal organ activity and intercommunication. Acupuncture can also produce more generalized shifts in autonomic neural activity, supporting the desired changes in digestive function*. Even mechanical [and pneumatic] pressures on the digestive organs are susceptible to acupuncture’s influence, by virtue of its ability to alter postural dynamics.
* The autonomic nervous system toggles between supporting digestive functions during periods of low mental or physical stress and restricting them when stress is high.