10% Happier with Dan Harris Folgen

Meditation teacher and writer Jeff Warren and our host Dan Harris reflect on their January 2017 road trip, in which they traveled from New York City to Los Angeles to talk with people about what keeps them from meditating, and in the process, the two friends discuss how meditation has helped them work through their own personal struggles. Their new book on their journey, written with Carlye Adler, is called "Meditation for Fidgety Skeptics: A 10% Happier How-to Book," which is on sale Dec. 26 and available for pre-order now.

There has been an explosion of research in recent years on what meditation does to the brain, but as neuroscientist Dave Vago points out, the science of putting meditation under neuro-imaging is still quite young. Vago, the research director for the Osher Center for Integrative Medicine at Vanderbilt University Medical Center, studies brain scans of meditators to analyze changes in brain activity, blood flow, size and function of certain areas in the brain, and he was part of a group of scientists who published paper aiming to define "mindfulness" and its neurological impacts.

On "Good Morning America," Ginger Zee is known as ABC News' bright, always-smiling chief meteorologist, but now she is sharing that, in reality, she has long battled storms within herself. Zee, who was born Ginger Zuidgeest, discusses her new memoir, "Natural Disaster: I Cover Them. I Am One."