In this photo taken Thursday, July 29, 2010, Gina, a highly trained bomb-sniffing dog with the U.S. military, joins Staff Sgt. Chris Kench on a sofa at the kennel at Peterson Air Force Base in Colorado Springs. Gina was a playful 2-year-old German shepherd when she went to Iraq but months of door-to-door searches and noisy explosions left her cowering and fearful. After she came home to Peterson Air Force Base in June 2009, a military veterinarian diagnosed her with post-traumatic stress disorder. Ed Andrieski/AP Photo

Bouncing Back From Trauma

Most of us will encounter a traumatic event in our lives. They’re often unavoidable, but what we can control is how we react to them. Psychiatrist Dennis Charney joins us to talk about bouncing back from life’s worst moments. He’s a co-author of “Resilience: The Science of Mastering Life’s Greatest Challenges” (Cambridge).