Only on the “CBS This Morning” podcast, fashion model and registered dietitian Maye Musk talks with co-host Gayle King about her new book, “A Woman Makes A Plan: Advice for a Lifetime of Adventure, Beauty and Success.” The 71-year-old discusses leaving her abusive marriage, raising three children as a single mother and overcoming obesity and ageism in the modeling industry. Musk tells King why she was reluctant to open up about her life but is hoping her story will inspire others to make a plan and live a happier life. Plus, hear how she becomes momma bear when it comes to her oldest son, Elon Musk.