How electromagnetic radiation affects your blood causing rouleaux formation: video1, video2. The reason why is explained by this paper. What ME/CFS blood looks like: video1, video2, video3. Since blood of those with M.E. seems to be sticky and the red blood cells tend to clump together as well as being damaged by oxidative stress, it seems prudent to reduce EMF/EMR exposure to avoid exacerbating the problem with rouleaux formation.