When he examined the young lifeguard, he saw that almost every square inch of her body was well tanned. She had been wearing practically nothing when she worked at the beach.
Neil Binkley, M.D., told me about his patient because she had the highest physiologic level of vitamin D in her system of anyone he ever saw. Her level was 80 ng/ml.
I had to look up the word “physiologic” to make sure what Dr. Binkley meant. Physiologic in the sense that he’s using it is “something that is normal, neither due to anything pathologic nor significant in terms of causing illness,” according to a medical dictionary.
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