>Simply removing some of the "bad old blood" well, that is in some sense that kidney and liver do, and when kidney and liver slow down then the "old blood" may

>Simply removing some of the "bad old blood" well, that is in some sense that kidney and liver do, and when kidney and liver slow down then the "old blood" may be becoming "bad" (say like with bad oil or fuel filter in the car). Just adding saline water for example improves PH (as older body runs more acidic) and that has a lot of net positive effects. https://academic.oup.com/biomedgerontology/article-pdf/51A/1/B91/1577389/51A-1-B91.pdf https://academic.oup.com/biomedgerontology/article-pdf/51A/1... " with increasing age, thereis a significant increase in the steady-state blood [H+] (p < .001), and reduction in steady-state plasma [HCOj] fp <.001), indicative of a progressively worsening low-level metabolic acidosis" and on effects of increased acidity for example: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4566456/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4566456/