A single night in a hospital reveals how healthcare has ballooned into a $3 trillion industry in the U.S. Even out-of-network lab work can illustrate this stark reality, and prescription drug prices only add to the burden. Fortunately, we have guidance from Dr. Elisabeth Rosenthal, the author of the acclaimed book, "An American Sickness: How Healthcare Became Big Business and How You Can Take It Back."

In our discussion, Kelly and I also touch on selecting the right credit card, financial strategies for single women, and the benefits of exchange-traded funds (ETFs).