For the past 12 years, Dr. Brené Brown has studied vulnerability, worthiness, shame and courage as a professor at the University of Houston's Graduate College of Social Work. At the 2010 TEDx talk in Houston, she opened up about her own vulnerabilities and her quest to better understand herself. Her story of personal discovery resonated with people beyond those in attendance, garnering more than 7 million views on TED.com. (Watch it here.)

Last week, Dr. Brown revealed why a perceived weakness like vulnerability is really our greatest strength. Now, she's back and delving even deeper. This Sunday, find out how to stop shame in its tracks and learn more about living a wholehearted life.

Tune in for the second part of Oprah's interview with Dr. Brown Sunday at noon p.m. ET/PT only on OWN.