We’re constantly assaulted by “noise” all around us: crowds, vehicles, social media. As quiet spaces around us dwindle, what is it doing to our minds and bodies? Why do we need silence for our health? Acoustic ecologist Gordon Hempton takes Dr. Sanjay Gupta on a tour to one of the quietest spots in the United States. Plus, quiet activist Vikram Chauhan gives listeners tips on finding quiet even in the noisiest cities.To learn more about how CNN protects listener privacy, visit cnn.com/privacy