“…The feasibility of recording UPE as a tool for measuring dynamic changes in human health and various physiological conditions has been reported (Bajpai et al, 2013; van Wijk, 2014; Van Wijk et al, 2014) and was reviewed recently (Ives et al, 2014). For example, a wide diversity of conditions are associated with changes in the UPE profile, including aging (Sauermann et al, 1999), diurnal biological rhythms (Cohen and Popp, 1997; Wijk E. P. and Wijk R. V, 2005; Cifra et al, 2007; Van Wijk et al, 2007; Kobayashi et al, 2009), and conscious activities (Van Wijk et al, 2005, 2006, 2008).…”