The Spread of Obesity in Social Networks

This video is a dynamic graphic representation showing a portion of the Framingham Heart Survey social network involving 2,200 people depicting (1) the spread of obesity in the network, (2) ties within the network, and (3) the change in those ties over 32 years. Since obesity is a multi-centric epidemic, there are many foci with many people influencing each other and forming ties in complex ways.

Each circle or "node" represents one person in the data set. Nodes with red borders are women, and nodes with blue borders are men. The size of each node is proportional to the subject's BMI. In addition, the interior color indicates the obesity status of the individual subject. Yellow nodes represent obese persons with a BMI greater than 30 kg/m2, and green nodes represent non-obese subjects. Each line between two nodes represents a social connection between two people. Purple lines denote close genetic ties such as parents, children, and siblings. Gray lines denote non-genetic relations such as friends and spouses.

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Category:

Science & Technology

Tags:

• Connected
• Nicholas Christakis
• James Fowler

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