According to Peggy Vaugn, the author of “The Monogamy Myth” and the website “Dear Peggy.com,” 60 percent of men and 40 percent of women will have an affair at some point in their marriage. In other words, the person who stays monogamous within her marriage is among a growing minority. Twelve years into my marriage,...

Clinical psychologist Tamar Chansky, Ph.D., founder and director of the Children’s and Adult Center for OCD and Anxiety, is one of the nation’s leading experts on anxiety disorder. She is also my personal coach on trying to tame my overactive amygdala, the almond-shaped structure inside your brain whose day job is to yell “Run for cover!” The...