All of nature is a reflection of our inner nature.

The Journal of the International Neuromodulation Society published a study in 2011 for the use of acupuncture in the treatment of gastro-intestinal disorders. They found that acupuncture modulates the somatic afferent nerves, regulating three biochemical responses: 1. pro-kinetic (motility, movement of the gut. 2. antiemetic (nausea and vomiting symptom) 3. anti-nociceptive effects (inhibition of the sensation of pain).

Gut function is largely a parasympathetic function of our nervous system, correlating to Yin; rest, repair and digest.