Deep-vein thrombosis (DVT) is a dangerous condition in which a blood clot develops in a deep vein, usually in the lower leg. Make sure this doesn't happen to you.
According to the World Health Organisation, the following factors increase your risk of DVT:
being seated and immobile for more than four hours while travelling by plane, train, bus or automobile.
Read: DVT a danger when flying
Taking multiple flights over a short period of time (the risk remains elevated for about four weeks after a flight).
Obesity. being very tall or very short (taller than 1,9m or shorter than 1,6m).
Use of oral contraceptives. and inherited blood disorders leading to increased clotting tendency.
Reduce your risk by exercising your calf muscles with up-and-down movements of the feet and wearing loose-fitting clothing while travelling.
Cabin air linked to DVT