Two science authors on the show today, both with new books that look at different ways of what makes us human. First up it's Shambles regular, Ginny Smith chatting to Robin and Josie about her new book Overloaded: How Every Aspect of Your Life is Influenced by Your Brain Chemicals, which is out today! And then they chat with Melanie Challenger about her new release, How to Be Animal: A New History of What It Means to Be Human. Book Shambles Patreon supporters can listen to longer interviews with each author. Over 40 minutes of bonus content for you this week. You can sign up at patreon.com/bookshambles