Arrive at the airport wearing loose, non-binding clothing – instead of tight-fitting. It’s not just about being comfortable on a long flight. It could save your life. According to travel expert Christopher Elliot, wearing form-fitting clothing can reduce circulation in your legs – which raises your risk for developing deep vein thrombosis – dangerous blood clots that can break free and lodge in your lungs or brain, and cause a stroke, or even instant death. So wear your sweats. You may not look fashionable – but you’ll live longer.