Guests: An interview with Jillian Michaels, fitness, nutrition expert, and host of the podcast “Keeping It Real: Conversations with Jillian Michaels.” This week’s panel discussion includes Jon Meacham,Pulitzer Prize-winning historian and author of “The Call to Serve: The Life of an American President, George Herbert Walker Bush”; and Jane Ferguson, award-winning foreign correspondent for PBS NewsHour, The New Yorker contributor, and author of “No Ordinary Assignment.”