This condition is related to deep vein thrombosis, where blood clots form in deep veins, such as those in the legs. These clots can be fatal if they migrate to the lungs and cause a pulmonary embolism. Clots can form when blood supply slows or stops, such as in a period of prolonged immobility. Similarly, e-thrombosis is the development of clots in the deep veins of someone who spends long amounts of time in front of a computer without moving. Although only a handful of e-thrombosis cases have been reported, millions of people who spend most of their time in front of a computer are at risk. Avoiding e-thrombosis is simple: stand up and move around every hour, tap your toes while you work, put equipment and supplies in different parts of your work area so you have to move to get them, don't cross your legs while sitting at your desk, don't spend your lunch break at your desk (go for a quick walk instead), and don't get too comfortable -- if your workspace is ultra-cozy, you won't want to get up.