For the past three years and counting, every time this happens, my stomach gets out of sorts.

After 12 hours or so, I begin to feel a bit queasy.

And within 24 hours, I can tell that something’s off.

a collage of intestines and a road map overlaid with a background of a windy road

Getty Images; EatingWell collage

“We’re entering into the holiday season here.

Never fear, your friendly neighborhood poop doctor is here to break it down.”

So why might our digestion feel “off” when we’re away from home?

Bulsiewicz dishes in his timely and tip-filled reel.

You’re out of rhythm.

Researchsuggest that most humans poop fairly regularly in the morning, and rarely do so at night.

Once you reset to your new time zone, it’s often easier to get back on track.

(Psst … here’sthe fastest way to relieve constipation, according to a dietitian.)

Your diet has changed.

You’re drinking more alcohol (and not enough water).

Feel free to enjoy a glass ofThanksgiving wineor a tropical cocktail on your beach vacation, if you like.

You’re not moving as much.

Travel often involves a lot of time sitting in planes, trains and automobiles.

You’re experiencing more stress.