Twins tell us about our humanity, who we are and where we came from, says Nancy Segal. In her fascinating and entertaining talk, we learn that genes play a much bigger role in our decisions and behaviour than scientists previously believed.

Dr. Nancy L. Segal has been seeing double since 1982. As a postdoctoral fellow and research associate at the University of Minnesota, she worked on the well-known Minnesota Study of Twins Reared Apart. A fraternal twin herself, Dr. Segal founded the Twin Studies Center at CSU Fullerton, where she is also a Professor of Psychology. Her work illustrates that by using twins as “living laboratories” we can sort out which aspects of twins' lives are influenced by genetic inheritance, and in turn begin to “lay bare the basis of human behavior.”

This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at https://www.ted.com/tedx