If this machine is similar to a typical galvanic device, I suppose one could experiment with it easy enough. Electrical current is used for short circuiting pain to the brain. When I do ionto, it definitely reduces my fibromyalgia pain as well as reducing my hand sweating on the hand that 's not being treated. Since the study was only done on six people and not compared to tap water ionto, the study basically is useless.
Electric current definitely effects our nervous system. A pacemaker is an electrical device that effects the heart in a similar way how ionto controls sweating. It's just not fully understood why tap water ionto works. In my own experimentation I have discovered that success is not totally dependent upon the water although it appears to so for some.
I've used the same identical tap water by transporting it 450 miles from the original source. The tap water worked in one region and not the other. Stress levels, medications, climate and location altitude all can play a factor in ionto treatment. I had rain water work miracles for my treatment one year and the following year have no effect. My treatments now are unpredictable at best. Yet, I had great success for at least 5 years straight. What changed? My body, health and stress level.
The point is that the study needs a wider range of parameters.