James Christopher Harrison is an Australian blood donor whose rare plasma composition has helped in the treatment of Rhesus disease. In May 2018, he made his final donation (1173rd) at the age of 81 after having saved 2.4m babies during his lifetime as a donor. – WTF Fun Facts
Source: https://www.straitstimes.com/asia/australianz/australian-man-with-golden-arm-makes-final-blood-donation-at-81-after-saving-24m
Damn, it must feel so good to know that you saved 2.4 MILLION babies in your life time