IntroductionOutcomes of medical treatments tend to be highly variable. Some of the underlying variance is due to well-known factors such as age, gender, ethnicity, and effects of local weather. There are also less obvious influences including variations in solar wind, the Earth's geomagnetic field, and the interplanetary magnetic field.This study explored possible effects of these local and solar/geomagnetic variables on the outcomes of energy medicine treatments. The context was a pilot clinical trial involving 17 energy medicine practitioners who treated a total of 190 participants presenting with hand and wrist pain. MethodsEighteen environmental variables were correlated against changes in subjective pain and against changes in objective measures of nerve conduction velocity. ResultsThe results showed that local barometric pressure, interplanetary magnetic field, lunar illumination, proton fluence, electron fluence, and solar radio flux showed statistically significant relationships with these health outcomes (at p < 0.05 or better) before correction for multiple comparison corrections. The variable of barometric pressure had a robust correlation with nerve conduction velocity, surviving adjustment for false discovery rate among the 18 variables at p < 0.05. DiscussionThis study lends support for future research into local weather, and potentially also to fluctuations in the solar/geomagnetic environment environmental measures as potential sources of variation in energy medicine sessions.