While don’t all get to take private jets, we probably do feel the effects that constant flying can have. It wreaks havoc on our digestive systems, our sleep cycles and our skin.

“Jet lag is a sleep disorder that causes an alteration of the brain’s sleep-wake cycle,” says Dr. Brunilda Nazario, senior medical editor at WebMD. “It’s the result of travel across several time zones.”

Symptoms of jet lag are very individual and can affect children and adults alike. Even seasoned travelers can feel the draining effects. In most cases, it can cause daytime sleepiness and nighttime insomnia. The best remedy is to plan ahead, says Dr. Nazario. “Before you travel eastbound, try to get to bed one hour earlier each night.

If you plan on traveling west, get to bed one hour later.” Dr. Michael Smith, chief medical editor at WebMD says that sleep isn’t the main issue. “The biggest impact on your body is dehydration. This can cause dry skin, light-headedness and, occasionally, fainting.” The most severe issue at hand is blood clots.

“Sitting for prolonged periods increases the likelihood of a blood clot. This occurs more frequently in people who are overweight or pregnant, who smoke or who recently had surgery,” explains Dr. Smith. “A clot in the leg can be serious – even life-threatening – if it travels to the lungs.

You can help prevent blood clots by changing positions in your seat, stretching your legs, getting up and walking around every one to two hours, and even by drinking extra fluids.” Just because you’re traveling coach doesn’t mean you shouldn’t treat yourself like you’re first class. [via]