The blood is collected from local blood banks, then separated and combined – it takes multiple donors to make one package. In the 17th century, Robert Boyle – he of Boyle’s Law – suggested “replacing the blood of the old with the blood of the young”. In 2012, the University of Cambridge’s Dr Robin Franklin led a group that showed blood from young mice could replace myelin sheaths – crucial for combatting MS in older mice. Conversely, injecting old blood into young seemed to knobble the young rodents. Despite these criticisms of the science, Dr Karmazin is still reporting positive results.

Source: The Guardian August 21, 2017 16:18 UTC