Why do medical people use the nonsensical units of % weight per unit volume?
You are perfectly right of course. From time immemorial the profession has done this, – using archaic or nonsensical units to obfuscate the subject, and confuse the layman. It helps build and preserve the ‘god-like’ image they like to project, and guard against their knowledge (or lack of it!) being shared or scrutinized. The other example is the outlandish cod-Greek or Roman names they love to give to perfectly ordinary conditions… so a raised pulse rate becomes “tachycardia” and raised blood sugar level “hyperglycemia”… It saves a lot of diagnostic work, doesn’t it, if you can give something a big, fancy, impressive-sounding name, and send the poor Punter away impressed but untreated?… The same mind-set has led to the absurdity of so-called “Age-relate Hypertension” with all its attendant ills, – all a complete myth! – But it sells pills, makes the pharmaceutical boys rich, and pays the doctor’s kids’ school fees….. (Watch and count the ‘thumbs-down’ votes rolling in from ass