 And that was the first time that I saw something called chelation therapy. This is well before I was into integrative medicine and embraced chelation therapy as a way to detoxify from lead and prevent cardiovascular disease. I saw little kids getting intravenous EDTA because they had extremely high levels of lead. Okay, so they threw, finally, some environmental controls and legislation. They've outlawed lead from many sources, but a lot of lead remains in the environment because lead is a forever substance.