In this week's episode of the Beta Sandwich Podcast Christian discusses how scientists are using computers to determine how ligands bind to receptors and why this may lead to a revolution in synthetic drugs. Also, we welcome a new member to the Beta Sandwich team, Karolina Balkenbush, a registered dietician (www.karolinaskitchen.com). In 'Science Blast' we discuss: Are scientists more moral than everyone els?; Does your brain heal itself when it sleeps?; prostaglandins and antioxidants affect fetuses with ductal obstruction; computers can now write Shakespeare; and scientists find more than 3000 unique chemical in your urine. In "Back of the Box" Scott discusses Castoreum, a secretion from a Beaver gland that is used as a vanilla and raspberry flavoring substitute.