Abstract
Methods to check the status of the human body by AMI or neurometer measurements based on the idea of a Ryodoraku diagnosis have been proposed, and they contribute greatly to examinations or treatments of the body. These methods measure the electrical conductivity of acupuncture points on the hands and feet, but no attention has been given to the circadian and seasonal variation of the measured values. In this study, we measured the electrical potential of the middle of the left palm (around the Laogong acupuncture point), and from the magnitude of the seasonal variation of the values, we considered the variation factors. As a result, we identified a characteristic seasonal variation of electrical potential that could not be explained by the variation of temperature and pressure only, and we considered that another factor than temperature and pressure may be present.
