(Airdate: April 25, 2023) Cris talks science and finds out what poo can do for you from author and microbiologist Bryn Nelson, PhD. The book is titled Flush: The Remarkable Science of an Unlikely Treasure. There are many aha moments as Bryn addresses human health concerns as well as the benefits of recycling and reusing human waste as we face together a need to rapidly change the way we live to preserve our planet. If you enjoy the work of Mary Roach then this book is for you. Cris thanks Port Townsend advocate Carol McCreary of PHLUSH: Public Hygiene Lets Us Stay Human for introducing her to Bryn Nelson.