For your information I, Dr Glenn, approaching 92, almost died from kidney and heart failure, caused by urine backup, about three years ago. My EGFR was 11 which is stage 4 kidney failure and my cardiologist said my heart was stage 4. A PA told me to go immediately to the hospital or she would call Hospice as I was about to die. Shortly before this blood test I had purchased the H2 generator from you and was starting to feel better so I refused to do either. I have used it for one or more hours every day since then and I am delighted to say that the EGFR is now 30! Dr Louis Wall, MD, is amazed at my progress and said keep doing what you are doing. I thought you would like to know.