On today’s Valentine’s episode, Brad Wilcox, author of the new book “Get Married,” joins She Thinks to discuss why he believes marriage is the solution to the decline in happiness. He says nothing predicts happiness in life better than a good marriage—not even a hefty bank account or a great career. We look at the data, the reasons why there are more single people than in decades past, and explore why walking down the aisle is the best way to save civilization.

Brad Wilcox is the director of the National Marriage Project and a senior fellow at the Institute for Family Studies. He has been featured in The New York Times, The Washington PostThe Atlantic, The Wall Street JournalChristianity Today, and National Review.