Chunks of happy clusters

[arcadian]

http://www.cosmosmagazine.com/news/2399/happiness-spreads-waves-study-says

Happiness spreads in waves, study says

Friday, 5 December 2008Agence France-Presse

LONDON: Happiness is infectious and can "ripple" through social groups such as family and friends; but colleagues are apparently immune to each other's moods, according to the British Medical Journal.

The effect creates "clusters" of happy and unhappy people, both socially and in geographical terms, said the study, stressing that contentment "is not merely the province of isolated individuals."

But while the mood of neighbours and friends can have more impact on people than that of live-in partners, work colleagues are not affected by a happy person in their midst, said the study.