This is your brain on pumpkin pie

Image credit: Evan Amos

Thanksgiving is a special time in the United States when we gather our loved ones and celebrate the abundance of fall with a rich palette of traditional foods. Yet a new study suggests that the 6-week holiday period that spans Thanksgiving, Christmas, and New Year�s Eve accounts for most of our country�s weight problem (1). Understanding this fact, and why it happens, gives us powerful insights into why we gain weight, and what to do about it.

Elina Helander, a postdoctoral researcher at Tampere University of Technology in Finland, and her colleagues set out to answer a simple question: how does a person�s body weight change over the course of the year? To find out, they used internet-connected scales to collect daily body weight data from nearly 3,000 volunteers in the United States, Germany, and Japan. After crunching the data, a striking pattern emerged: no matter what you celebrate, at any time of year, the holidays are likely to be your period of greatest weight gain.

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