In medical practice, the word “normal” denotes, among other things, the state of affairs we doctors aim for, setting the boundaries delineating health from disease. “Normal levels” and “normal functioning” are our goal when we apply treatments or remedies. We also gauge success or failure against “statistical norms”; we reassure worried patients that this symptom or that side effect is completely normal, as in “to be expected.” These are all specific and legitimate uses of the word, enabling us to assess situations realistically so that we can aim our efforts appropriately.
