Gingerbread man and holiday cookies

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Old loop: What's the point of losing weight during the winter? I'll get in shape come summer.

Switch to... By eating more now, I'm creating a lot of extra work for myself when spring rolls around.

Here's How: A study by scientists at the National Institutes of Health tracked 195 people through the holidays and found an average weight gain of about a pound.

By the following year, most had gained another half pound, and the researchers predicted that the trend would only continue. To prevent this outward creep, Gullo says, keep thoughts of summer in your house all year long by hanging a bikini or skimpy sundress on the back of the bathroom door, and visualize yourself wearing it every time you head for the leftovers. He also proposes committing to a regular exercise program in the fall, "before the winter blahs set in," because lugging last night's comfort food through an hour-long spinning class isn't so comfortable.