Will You Be Obese? Look at Your Sisters, Brothers, Duke University Study

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Obesity is known to run in families, but new research suggests this relationship may be the strongest among siblings. Although older children in a two-child home with an obese parent are more than twice as likely to be obese, having an obese older sibling may raise the risk more than fivefold for a younger child, whether the parents are obese or not, the researchers reported.

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