The aligned water theory of the meridian (TCM) conjectures that meridians are made up of aligned water clusters. Aligned water clusters are where large numbers of water molecules align electrically to form a stable cluster. These have been photographed with an electron microscope by Shui-Yin Lo outside the body. He calls them IE crystals. These aligned water molecules are thought to flow between the cells. They form a chain that completes a circuit around the body. When the water molecules fall out of alignment the body may become less healthy.