Long haul travel is a risk factor for developing a Deep Vein Thrombosis (DVT).
Reducing your risk of DVT is important. This includes drinking plenty of fluids like water, avoiding diuretics like alcohol and caffeine, regularly moving around the cabin and also doing calf exercises. Some people like to wear compression stockings.
Some travellers are at higher risk. These include those with a past history of thrombosis. However being overweight, pregnant, having a history of cancer or being on certain medications can also increase your likelihood. Your doctor can discuss recommendations specific for your needs. For all your travel needs, see your GP at RPM.