Kat Medina is an entrepreneur, world traveler, public speaker, and author of the book "The Joys of Jet Lag."Jet lag is a thing, and people who travel by plane for many hours through different time zones to reach their destination, can or will suffer from it.It is not pleasurable, however, the art of dealing with it can help in other ways. For example, it can help us be tolerant, accepting, and understanding of people in foreign lands around the world. We will be guests in their country, a pla...