Editing Life extension (section)

===Young blood conspiracy theory===
{{Further|Young blood transfusion}}
{{Further|blood libel}}
Conspiracy theorists claim that some clinics currently offer injection of blood products from young donors. The alleged benefits of the treatment, none of which have been demonstrated in a proper study, include a longer life, darker hair, better memory, better sleep, curing heart diseases, diabetes and Alzheimer's disease.<ref name=MIT>{{Cite web|url=https://www.technologyreview.com/s/603242/questionable-young-blood-transfusions-offered-in-us-as-anti-aging-remedy/|title=Questionable "Young Blood" Transfusions Offered in U.S. as Anti-Aging Remedy| vauthors = Maxmen A |date=January 13, 2017|website=MIT Technology Review|access-date=November 5, 2017}}</ref><ref name=natpost>{{Cite news|url=https://nationalpost.com/news/world/why-a-silicon-valley-company-is-pumping-old-people-full-of-young-blood-for-us8000|title=This anti-aging startup says US$8,000 worth of young blood can help you live longer| vauthors = Kirkey S |date=November 2, 2017|work=National Post|access-date=November 5, 2017}}</ref><ref name=indep>{{Cite news|url=https://www.independent.co.uk/news/science/teenagers-blood-transfusion-ambrosia-san-francisco-jesse-karmazin-a7902916.html |archive-url=https://ghostarchive.org/archive/20220614/https://www.independent.co.uk/news/science/teenagers-blood-transfusion-ambrosia-san-francisco-jesse-karmazin-a7902916.html |archive-date=2022-06-14 |url-access=subscription |url-status=live|title=Teenagers' blood being sold for £6,200 a shot| vauthors = Osborne S |date=August 20, 2017|work=The Independent}}</ref><ref>{{Cite news|url=https://www.theguardian.com/society/shortcuts/2017/aug/21/ambrosia-the-startup-harvesting-the-blood-of-the-young|title=Ambrosia: the startup harvesting the blood of the young| vauthors = Haynes G |date=August 21, 2017|newspaper=The Guardian|access-date=November 5, 2017}}</ref><ref>{{Cite news|url=https://www.cnbc.com/2017/05/31/blood-transfusions-from-teenagers-start-up-charging-8000-apiece.html|title=This start-up is offering $8,000 blood transfusions from teens to people who want to fight aging| vauthors = Farr C |date=May 31, 2017|work=CNBC|access-date=November 5, 2017}}</ref> The approach is based on [[parabiosis]] studies such as those Irina Conboy has done on mice, but Conboy says young blood does not reverse aging (even in mice) and that those who offer those treatments have misunderstood her research.<ref name=natpost/><ref name=indep/> Neuroscientist Tony Wyss-Coray, who also studied blood exchanges on mice as recently as 2014, said people offering those treatments are "basically abusing people's trust"<ref name=vanfair/><ref name=indep/> and that young blood treatments are "the scientific equivalent of fake news".<ref name=quartz>{{Cite news|url=https://qz.com/996190/ambrosia-says-a-transfusion-of-young-blood-plasma-lowered-disease-markers-in-a-human-trial/|title=A startup that charges $8,000 for young blood transfusions swears they're worth every penny| vauthors = Foley KE |date=June 1, 2017|work=Quartz|access-date=November 5, 2017}}</ref> The treatment appeared in HBO's ''[[Silicon Valley (TV series)|Silicon Valley]]'' fiction series.<ref name=vanfair>{{Cite magazine|url=https://www.vanityfair.com/news/2017/06/this-anti-aging-start-up-is-paying-thousands-of-dollars-for-teen-blood|title=This anti-aging start-up is charging thousands of dollars for teen blood| vauthors = Kosoff M |date=June 1, 2017|magazine=Vanity Fair|access-date=November 5, 2017}}</ref>

Two clinics in California, run by Jesse Karmazin and David C. Wright,<ref name=MIT/> offer $8,000 injections of plasma extracted from the blood of young people. Karmazin has not published in any peer-reviewed journal and his current study does not use a control group.<ref name=quartz/><ref name=vanfair/><ref name=MIT/><ref name=indep/>