Long distance travel can cause a number of circulatory problems, ranging from swollen ankles and tired aching legs, to more serious medical conditions such as Deep Vein Thrombosis - DVT (blood clots).
Passengers on long-haul flights can be subjected to long periods of inactivity, a cramped seated position and a tendency to become dehydrated.
Wearing compression socks has been proven to reduce the risk of developing Deep Vein Thrombosis (DVT) by improving blood circulation and preventing build-up of fluid in the lower legs.