Experts discuss how the gut-brain connection influences conditions such as IBS, Parkinson’s, and depression. The program explores light pollution through a discussion of Craig Childs' book "The Wild Dark." Additionally, research into fog ecosystems reveals bacteria that consume pollutants. Finally, Dr. John Nkengasong addresses the challenges of building stable global health systems amid shifting politics and Ebola outbreaks.
A study in Psychiatry Research: Neuroimaging found structural differences in the precuneus, a brain region associated with memory and self-focus, in individuals who tend to ruminate, which is common in depression. The findings suggest that rumination may result from network-level interactions in the brain.