Some emotions-such as anger, sadness, and fear-may be seen as obstacles to happiness. This episode explores where these "negative emotions" come from, how they are important to our lives, and why, for many of us, they sometimes require attention and management. The stories include a woman whose inability to control her temper is jeopardizing her relationships, and a teenager trying to overcome depression. Veterans and their families struggle with posttraumatic stress disorder (PTSD) and search for treatment.