"Medical fashions" in the 20th century

Our working hypothesis is that, in reality, we doctors do not base the practices and concepts we handle as rationally as we presume, but on socio-cultural constructs that seem to follow what Canguilhem and Caponi said in their work: "let us make the Kantian statement more drastic: there is no science of health; health is not a scientific concept, it is a vulgar concept. Which does not mean trivial, but simply available to everyone". Fads in medical behaviour come and go: what today seems true and is used, tomorrow can be set aside without further explanation. The risks of these behaviours are there for all to see, but there seems to be no learning and a new fad succeeds the old one.