The French call it "la gueule de bois," or wooden mouth. For Germans, it's "Kater," or a tomcat. Japanese know it as "futsukayoi," or "two-days drunk." But whatever the language and wherever it takes place, a hangover is the same: headache, nausea, shaking, blurred vision, biliousness, dry mouth... the list of evils is long. In Roman times, Pliny the Elder swore by raw owls' eggs. In Elizabethan England, a pair of eels suffocated in wine was touted as the trick. Green frogs were an acceptable substitute for those who were out of eels. In the 19th century, hungover chimney sweeps...