The Jet Lag question. I know there was such a thing as Jet Lag. I know there was rapid travel before jets. No help from readers. Google didn’t help. I asked Judy.
Judy found references to “Rapid Time Zone Change Syndrome” and “Desynchrony” from as early as the thirties. Disturbances to the circadian rhythm. Charles Lindberg wrote about it. Pan American flew piston engine powered Lockheed Constellations around the world from the mid-forties to the mid-sixties. They had to deal with it. They dealt with desynchrony.
There just wasn’t an easy reference term for the problem before jet travel. Nothing so convenient as “Jet Lag”.
