Thursday, Mar. 19, 2009

Nicholas Christakis

AGE: 47
OCCUPATION: Social scientist
PREVIOUS APPEARANCES ON THE TIME 100: 0

PRO: As the foremost expert in epidemiology — the study of factors that affect human health — Christakis' groundbreaking studies on obesity and smoking have prompted new insights into the role of social networks in our lives.

CON: What's he got against pudgy puffers?