They may not be sexy, but compression socks
are a simple life-saving measure everyone should add to their wardrobe. 'Especially during a long flight, remaining sedentary for extended periods of time can introduce problems,' says Dr. William Spangler, Global Medical Director with AIG Travel
, who has more than 30 years of emergency medical experience. 'One of the most common of these is deep vein thrombosis (DVT), which is the formation of blood clots, particularly in the lower leg or thigh. It doesn't cause much pain, but when the clots break off and go elsewhere, they can create serious problems.' Aside from compression socks, which help to increase circulation, Dr. Spangler advises getting up at least every two hours, even if it's only in your seat just to move your legs. If you can walk up and down the aisle a bit, that's even better.