Broken Heart: A Statistical Study of Increased Mortality Among Widowers

The spread of obesity in a large social network over 32 years

Dynamic spread of happiness in a large social network: Longitudinal analysis over 20 years in the Framingham Heart Study

Model of genetic variation in human social networks

Social capital in the creation of human capital

Effective leadership and decision-making in animal groups on the move

Murder by structure: Dominance relations and the social structure of gang homicide

Creating social contagion through viral product design: A randomized trial of peer influence in networks


Cooperative Behavior Cascades in Human Social Networks

私たちはみな友人、家族、仕事の同僚などから構成される広大な社会的ネットワークに組み込まれています。幸せから肥満まで様々な特性がどのようにして人から人へ広がっていくかをニコラス・クリスタキスが追跡し、ネットワーク内の位置が気付かぬうちに私たちの生活にどう影響を与えるかを紹介します。

ニコラス・クリスタキス：社会的ネットワークの知られざる影響

Human connections ripple far beyond close friends or family, influencing everything from happiness to obesity. Studies show that a person’s risk of becoming obese jumps 45 percent if a friend becomes obese, and even friends of friends can affect behaviors and emotions. These sprawling networks act like living organisms, with patterns and benefits that emerge from their complex structure. The architecture of our relationships holds surprising power over health, feelings, and even personal choices.

Social Networks Shape Lives in Invisible, Powerful Ways

evolution

health

medicine

science

society

friendship

TED Stage Talk

Nicholas Christakis: ニコラス・クリスタキス：社会的ネットワークの知られざる影響