There are a lot of causes of the declining global birth rate – education, freedom, and even the decline of subsistence agriculture. But what if one of the biggest factors was … plastic? Epidemiologist and author Dr. Shanna Swan joins Adam this week to break down why phthalates affect our fertility as well as our overall health. They cover her scientific research into phthalates, how they get into our systems, how they disrupt the development of reproductive organs, and what this means for the continuation of the human race. For Dr. Swan's book Count Down, as well as other books written by guests of this podcast, go to  http://factuallypod.com/books.