The ancient people of Chaco Canyon may have hauled logs with head straps to build massive stone houses. So, two scientists gave it a try.

Yi Zuo, professor of Molecular, Cell and Developmental Biology at UC Santa Cruz, speaks about her research on how experiences, such as stress, affect brain connectivity and how the change in the brain’s connection and functions feed back to influence behavior.

In this video, McKenzie Prillaman describes the concept of cognitive flexibility.

An introduction to the AAAS Dialogue on Science, Ethics, and Religion Program.