Errors in madicine have many causes (I spot the spelling error, but I will leave it be)
-humans make mistakes and doctors are humans
-patient cured is a customer lost
-our science makes mistakes
-Americans do take far more drugs than people of other countries due to their unhealthy and disease-creating lifestyle and some drugs multiply side effects when combined, in other words, the doctor's work is more difficult in USA
-no room for naturopathic medicine

Whereas I agree with the statistics, I think there may not be casuality but correlation in the graph showin the life expectancy decline. Our food is becoming more pesticide-heavy and less nutrient dense. I hope I may link to my old article here:
https://steemit.com/health/@greenmask9/38-apples-a-day-depletion-of-minerals-in-soil
Have a nice day!