How To Prevent Blood Clots While Flying (video) CheapOair Staff August 18, 2010 Videos Of course all joking aside, there are helpful travel tips in travel video above that will help you stay healthy. Click on the video to learn about the extensive number of exercises that you can do to prevent blood clots. According to the video, blood clots are known as “economy-class syndrome.” Warning: If animated harry legs gross you out, you may want to avoid this video. For more travel tips, visit CheapOair.com… Source: HowCast