BLOOD AND WATER ARE TWO DIFFERENT THINGS. This a a scare tactic that medical doctors have been using for years to keep people away from ozone therapy. if there was only water in your veins you wouldn't be reading this now. Blow pure oxygen into a cup of blood and you might get a different reaction. Now we're talking about a occurance on the molecular level that's unseen by the naked eye. This is why responsible research very important, not parlor tricks and conclusions.