Nicholas A. Christakis

NICHOLAS A. CHRISTAKIS is an internationally recognized physician and sociologist – one of less than ten such doubly trained individuals in the US. He is a Professor at Harvard University with joint appointments in the Departments of Health Care Policy, Sociology, and Medicine, and he was formerly a Professor at the University of Chicago. For the last ten years, he has been studying social networks.

Dr. Christakis received his BS from Yale in Biology in 1984, his MD from Harvard Medical School in 1989, and his PhD in Sociology from the University of Pennsylvania in 1995. He has conducted widely cited research in numerous public health topics, and in 2006 he was elected to the Institute of Medicine of the National Academy of Science. He has published over 100 scientific articles and chapters, edited medical textbooks, and also been an occasional contributor to editorial pages (e.g., at the New York Times). He has been the recipient of teaching awards at Harvard, and the podcasts of his Harvard lectures, available at iTunes, are widely listened to outside of that institution.


'Social Networks are like the Eye'
A Talk with Nicholas A. Christakis
Edge Video

"Social Networks and Happiness"
By Nicholas A. Christakis & James H. Fowler

Beyond Edge:

The Christakis Lab | Harvard University

The Connected website

Nicholas Christakis TED Talk:
"The Hidden Influence of Social Networks"