I'm no Chiropracter (of course), but I think their methods are very similar to ones used in Japan and China.
It is the stimulation of pressure points, and nerves, all of which would affect internal organs. (In some cases, manipulation of joints and ligaments-such as for back pain)
I saw a map of the foot one time in Japanese, where the certain areas had pressure points affecting the internal organs from there.
I'm not surprised that Chiropractic Therapy helps, but sometimes the proper diet and supplements are also necessary. Supplements would include the enzymes used for digestion. The Therapy alone won't do it, it is only as an aid.
Chinese Medicine theory is simple, they give medicine that would stimulate the body to defend itself against illness. Some Western Medicines are designed to do it all for the body, but never gives the body a chance to repair itself.
I used to visit a doctor similar to a Chiropracter, as well. It's very helpful, but if the cause can be eliminated, the need for a Chiropracter can be decreased.
In some cases, I can relieve some strains, myself, using a Japanese technique of "Shiatsu". My wife is also pretty good at Shiatsu.
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