Air travel can exacerbate circulation problems, especially when they require you to sit in the same seat for hours with little leg room. Sometimes circulation problems in the feet are symptomatic of another problem, such as diabetes; other times, poor circulation leads to complications such as blood clots, or deep vein thrombosis. Taking precautions when flying can make your travel experience safer and much more comfortable.

Blood Clot Risk

Poor circulation when sitting for long periods can sometimes cause blood clots to form in the legs and feet. Air travel in particular can increase the risk of developing blood clots, due to dry cabin air and limited space to move. Symptoms of blood clots include warmth, swelling and pain in the legs where the clots have formed. Sometimes the pain is sharpest when standing from a sitting position, as blood drains toward the clot and painfully pools. Treatment consists of prescription blood thinners.

Before You Travel

Before you travel, make an appointment with your physician to discuss your blood circulation concerns and travel precautions. Sometimes poor circulation is a symptom of a more serious artery problem. For instance, Raynaud's, which affects 3 percent to 20 percent of the population, makes fingers and toes turn white and become painful as attacks interrupt blood flow to these extremities. Tingling in the feet might indicate diabetes, while swelling can be a symptom of problems such as high blood pressure or kidney disease.

Compression Stockings

If blood clots are a concern, your doctor might recommend that you wear compression stockings for the duration of your flights. They are specially designed stockings, typically either knee- or thigh-high, that constrict the arteries to increase the velocity of blood flow through your veins. This keeps the blood circulating through your entire body instead of pooling in your feet. It's also smart to wear these tight stockings whenever you'll remain seated for long stretches of time, such as during bus tours or car trips.

Circulation Tips

To keep your blood flowing while you travel -- especially on long flights -- you should stay hydrated, avoid salty foods and avoid crossing your legs. Every half hour or so, it's smart to roll your ankles and flex your feet to keep your circulation going; standing and walking up and down the aisles is even better. If your physician recommends it, take a baby aspirin 30 minutes before takeoff to temporarily thin your blood and reduce the risk of blood clotting during the flight.

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