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May 11, 2010


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Andrew A. Gill

What I'd like to see is if the opposite is true. If you have healthy body weight friends, does that make you more likely to be a healthy body weight?


The authors seem to take that as a corrolary of their evidence.
They're working on how best to accomplish spreading healthy signals:

"But when it comes to diet and exercise, is it better to have people with more connections float the healthy recipes and exercise messages, or to have the positive signals come from close friends of the target? That puzzle has not been solved, even though efficient public-health spending depends on the answers to such questions."

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