Thanksgiving is supposed to be a holiday of gratitude, but more often than not it also becomes one of indulgence. The ideal dinner ranges between 600 to 800 calories, but a holiday dinner can easily be 2,000 calories or more, especially including appetizers and drinks.

What exactly happens in your body after you reach for seconds and thirds? This graphic shows the stages that your body can go through when you overeat, from feeling out of breath to feeling drowsy and chilly.