A social network map connects individuals through a common variable. Each circle on the social network map above is a representation of one individual, the size of their circle indicates Body Mass Index, and the lines are drawn for family and friendship ties. This social network map is based on a population of 2,200 and according to the data drawn if people who you are connected to by friendship or family ties that are obese or become obese increase your likelihood of becoming obese. The percentages vary depending on the type of connection.
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