Dr. Jonathan Garlick is one of the world's leading experts on stem cells. In this episode, Dr. Garlick teaches comedians Myq Kaplan, Zach Sherwin, and Anna Drezen about the science behind stem cells and their potential uses, what most people get wrong in the stem cell debate, and the grossest way to wallpaper a room. This episode even features a rap about dentistry! Hosted by Chris Duffy. Technical direction by Kevin Brunswick. 

Dr. Pardis Sabeti has been called "the rollerblading, rock star scientist of Harvard." She invented an important new technique for genetic sequencing and looking at natural selection. Her research might even help cure Ebola. Comedians Josh Gondelman, Anna Drezen, and Emmy Blotnick learn about her work, diplotypes, and the future of genetics. Hosted by Chris Duffy. Technical direction by Kevin Brunswick.