part of the problem is that in med-speak things are often classified as "does good" "does nothing" "does bad" and by default new or untested things are never i

part of the problem is that in med-speak things are often classified as "does good" "does nothing" "does bad" and by default new or untested things are never in "does good" I mean, until a few years ago there was no scientific evidence that parachutes helped with surviving jumping off a plane