RICK HOUGH, 53, has suffered from jet lag since his first trip to Paris in 1988. Now, even multi-leg trips don’t phase him—last summer, he went through Copenhagen, Greenland, San Diego, New York and Alaska in three weeks. Despite success stories like Mr. Hough’s, some seasoned globe-trotters maintain there is not much you can do to solve your jet lag. On one trip to London, Mr. Robotti recalled, he fell asleep three different times in a one-on-one meeting that lasted all of an hour. “You know it’s going to be hard,” he said of dealing with sleep issues while traveling internationally.

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