The leaves turn brown and crunchy, the air gets crisp and cool, and you know fall and winter are approaching. This transition signals travel, family time, holiday parties and another signature seasonal element -- gaining weight. The good news is, the reports you'll see splashed across the Internet and local TV news programs are largely blown out of proportion. While you may see a health report stating weight gains as much as 10 pounds from Thanksgiving to New Year's Eve, the average weight gain is more like one pound, according to a 2007 study published in the New England Journal of Medicine. Overweight individuals do tend to gain more (up to five pounds) and further studies have revealed that most all of us tend to keep the weight [source: Pope].
Here are five things that may lead to weight gain over the holidays.