Well, you're right most of us do not go around getting blood transfusions yearly, etc. , however look at Keith Richards of Rolling Stones. The last several years, he goes to Sweden and gets a full body blood transfusion from virgin Swedish lady blood. This has in turn kept him alive, lively, heart still beating. 1 + 1 = does equal 3 !!
If we had turbos on our cars, that cooks the oil... gets it darker , faster. Thus breaks down the oil faster then N/A engines.