When we're feeling down, what's the best way to cheer ourselves up? A new study from Iowa State University suggests that the key to happiness might lie in wishing others well. On this "news buzz" edition of River to River , host Ben Kieffer sits down with Douglas Gentile, professor of psychology at Iowa State University, to learn more about his recent study that put techniques to reduce anxiety and increase happiness to the test. For the study, college students were instructed to walk around a