Experiments with alkaline (Catholyte), acidic (Anolyte) components of electrolyzed water, and control sample were carried out using NES and DNES methods. Clusters of different energy of hydrogen bonds were obtained. They were modeled with dodecahedral structures consisting of 20 water molecules having a diameter of circumscribed spheres equal to 0.822 nm. Lower number of clusters and increased average number of molecules per cluster in Catholyte and Anolyte compared to control water points to their better structuring. Higher average energy of hydrogen bonds in Catholyte and lower energy in Anolyte than that in control water, points to increased/decreased energy density, respectively, which could be related to different physiological effects. Thus, a new point of view to the processes of electrochemically activated water and its physiological action is suggested.

Keywords: Anolyte, Catholyte, NES, DNES, hydrogen bonds, clusters