I look at prevention through an economic lens and make three main points. First, those advocating preventive measures are often asked how much money a given measure saves. This question is misguided. Rather, can be thought of as insurance, with certain cost in the present that may or not pay off future. In fact, although most medical improve expected health, they do save money. Various lifestyl...

People write to ask me if the dose is to be half a drachm or half an ounce, so it is as well to say half an ounce unmistakably, or the drug might fall into undeserved disrepute. I am asked if the patients whose swollen legs I describe may not have been suifering from Beri-beri. I believe not. The cases yielded readily to the usual antiscorbutic treatment, while Beri-beri requires turpentine.