Did Tom's love of Beer make me fat?

The El Cubano Gordo experiment is good evidence that community and friendship make weight loss easier, but is the reverse also true? Can Tom, Pete, Steve and Noah make me fat? NEJM published some research this week that says YES. "Obesity can spread from person to person, much like a virus, researchers are reporting today. When one person gains weight, close friends tend to gain weight, too." I'm not sure how I feel about the research. It strikes me a bit like saying everyone who is dead drank water, so drinking water leads to death" but decide for yourself...

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