"They say it's not what you know but who you know. A new study suggests that this aphorism might hold true when it comes to your body weight.
If a friend of yours becomes obese, you have a nearly 60% higher chance of sliding into this category as well, according to the analysis. The finding has prompted researchers to call obesity a "socially contagious" disease in which a sense of what constitutes a normal body weight passes from one person to the next."
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