I had just traveled home from Singapore to attend my sister’s wedding. Now, a week later, I was back in Asia. My circadian rhythm was bewildered by two massive time-zone changes, so I was pleased to stumble across a magazine article about overcoming jet lag. The key, it said, was scheduling food intake. Travelers are supposed to eat at certain times and strictly abstain from food the remainder of the day. The article listed “feast/fast” schedules for several travel itineraries. I eagerly looked up mine. The chart said something like “feast, fast, feast, fast, fast, feast,” as if the [...]