If you’ve always dreamed of living abroad, now may be the best time. Today, there are around 400,000 American retirees residing outside the United States, with that number expected to grow over the next few years. Cost of living is often cited as one of the main reasons for the move. For example, in places like Mexico and Costa Rica, it’s possible to live off of a Social Security check, while enjoying a relaxing lifestyle in the process. Other retirees cite rising health care costs as a contributing factor in their decision to move out of the U.S.