He was named a 2010 Fellow of the John Simon Guggenheim Foundation. Nicholas Christakis is an American physician who also researches on social networks. He was named a Fellow at the American Association for the Advancement of Science in 2010. Fowler and Christakis came together at Harvard to conduct a meta-study involving 5,000 students over a period of 20 years, and published the results in the British Medical Journal.