Are you heavier after you fly?

Four or more hours on a plane can cause fluid and electrolyte imbalances, leading to a small increase in your weight, says Jampolis. If you do plan on weighing yourself after a flight (for some odd reason), drink lots of water while you're in the air and avoid alcohol and caffeine, which can dehydrate you further.



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Weight gained after a vacation or indulgent weekend doesn't mean you've put on fat. It's probably just water retention, experts say.

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Sitting down in a tight seat for 13+ hours can sometimes lead to circulation issues, including swelling in the feet. According to The Healthy, the chance of your body forming blood clots increases when blood isn't moving correctly, such as when onboard a long-haul flight.

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To add to that the increased altitude and low air pressure mean that the lymphatic system is not able to properly transfer the fluid, which increases retention.” Meanwhile the low humidity of the air means that moisture evaporates from the skin, leading to increased dehydration.

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The cramped conditions and long periods of being less active on a flight can cause pain, stiffness or swelling of your legs. Being less active can lead to slow blood flow in your veins which increases your risk of developing a blood clot, known as deep vein thrombosis (DVT). DVTs most commonly form in the legs.

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Dryness and air pressure changes can affect your ears, sinuses & taste. A 3 hour flight can shed up to 1.5 litres of water from the body. Aeroplane cabin humidity levels as low as 4% can cause the mucous membranes of your nose, mouth and throat to dry out.

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Take a trip to the grocery store as soon as possible and stock up on foods that help you lose weight. Such foods include, but are not limited to, whole grains, fresh fruits and vegetables, legumes -- such as chickpeas and lentils -- and lean proteins. Avoid sugary and salty snacks altogether.

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Once you've landed, you can use a lot of the same tools to reduce swelling after your travel: “Stay hydrated, move around, and wear compression socks,” says Wurster. “Also, be mindful of what you're eating and avoid foods too high in sodium because that can also add to further swelling.”

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Travel: For some people, sitting for a long time in a car or airplane can cause fluid retention. The lack of circulation allows fluid to build up; however, the swelling usually goes away in a day or two.

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If your feet and ankles swell during a flight but the swelling subsides shortly afterward, it's not a serious concern. But if the swelling continues for hours after the flight and if the leg is red or warm to the touch or you have symptoms in only one leg, you need to seek medical care.

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Jet belly: (noun) the bloated state in which your stomach inflates post-flight. Also, a very unpleasant feeling. May also make you look like you're 3 months pregnant. So how does one prevent this jet belly? Well, it all depends on what you eat on the plane.

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The air pressure makes you bloated and gassy.
That lower pressure causes the gases in your gut to expand, resulting in bloating and gassiness, Dr. Movassaghi says. That can make your stomach feel uncomfortably full or crampy, or make you fart more.

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