Making vacation plans and getting ready to stoke your wanderlust have been scientifically proven to improve health. The largest boost in happiness comes from the simple act of planning a vacation. Nearly 4 out of 5 domestic trips – that is 79 percent – are taken are for leisure purposes, according to the U.S. Travel Association. Americans vacationing abroad spent $110 billion in 2015. Since you are already traveling and spending money, why not explore new destinations where you have never been before and experience adventures that you can’t find just anywhere.