6/2/2019: Today is was published that many wealthy people in America are doing several things to promote their longevity. Peter Thiel is behind the company called Ambrosia. One such method was to pay for blood transfusions from young people at $8000 USD per transfusion. They have enrolled 600 subjects in the study. Of course there is no literature on such and no long term outcomes. The method and outcomes must be taken by faith.
It reminded me that there is a publication (Bible) that indicates that a covering of blood will not just result in prolonged, but eternal life. It will transform a corruptible body to an incorruptible one. At this time subjects are being recruited for the study. Enrollment is free, having been paid for by the sponsors. The method and outcome measurements will also be validated by faith.