Word: christakises
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Increasingly, the answer seems to be yes. That's the intriguing conclusion from a body of work by Harvard social scientist Dr. Nicholas Christakis and his political-science colleague James Fowler at the University of California at San Diego. The pair created a sensation with their announcement earlier this month...
It’s long been said that laughter is contagious, and now, it turns out, so is happiness. Happiness is not an individual but a collective phenomenon, according to a new study released online Thursday in the British Medical Journal. The study, which followed almost 5,000 people over...
Here's how it works. Christakis and Fowler traced the social network of 5,000 individuals who were enrolled in the large, federally funded Framingham Heart Study over a period of 32 years. The authors carefully worked out the relationships among the subjects, many of whom were related by family...
Back in 1971, when the Framingham study began, smokers and nonsmokers were equally likely to be at the center of their social-relationship "nodes." By 2000, however, nonsmokers not only outnumbered the smokers, in all age groups, but they had pushed smokers to the edges of any networks they belonged...
Such ripple effects among social groups may seem pretty obvious - people naturally look to their friends to figure out what behaviors are socially acceptable - but Christakis notes that the scope and size of the networks in which these effects operate is much larger than previously thought. His research, for example...