We’re a happy family

“In a study that looked at the happiness of nearly 5000 individuals over a period of twenty years, researchers found that when an individual becomes happy, the network effect can be measured up to three degrees. One person’s happiness triggers a chain reaction that benefits not only their friends, but their friends’ friends, and their friends’ friends’ friends. The effect lasts for up to one year.”

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The graph shows the largest component of friends, spouses and siblings in 2000. Circles are females, squares are males and the lines between them indicate relationships (black for siblings, red for friends and spouses). Colors show the average happiness of a person and all of his or her social relations, with blue for sad, yellow for happy and shades of green for in-between. (Credit: JamesFowler, UC San Diego)

quoted from ScienceDaily

James H Fowler, Nicholas A Christakis. Dynamic spread of happiness in a large social network: longitudinal analysis over 20 years in the Framingham Heart Study. British Medical Journal, December 4, 2008

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2 responses to “We’re a happy family

  1. and how do they know it’s causal not correlated? 🙂

  2. i haven’t read the full text, so I don’t know. good question toothpastefordinnerman 😉

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