1Chevalier, G., Sinatra, S. T., Oschman, J. L., Sokal, K., & Sokal, P. (2012). Earthing: Health implications. Journal of Environmental and Public Health, 2012, 291541.
2Hamblin, M. R. (2016). Photobiomodulation or low-level laser therapy. Journal of Biophotonics, 9(11–12), 1122–1124.
3Li, Q. (2010). Effect of forest bathing trips on human immune function. Environmental Health and Preventive Medicine, 15(1), 9–17.
4Perez, V., Alexander, D. D., & Bailey, W. H. (2013). Air ions and mood outcomes. BMC Psychiatry, 13(1), 29.
5Mitchell, P. (1961). Coupling of phosphorylation to electron and hydrogen transfer. Nature, 191, 144–148.
6Oschman, J. L., Chevalier, G., & Brown, R. (2015). The effects of grounding on inflammation. Journal of Inflammation Research, 8, 83–96.
7Park, B. J., Tsunetsugu, Y., Kasetani, T., Kagawa, T., & Miyazaki, Y. (2010). The physiological effects of Shinrin-yoku. Environmental Health and Preventive Medicine, 15(1), 18–26.