Known around the world for his WIRED video talking about sleep, Dr. Aric Prather joins the show to talk about his study linking sleep to resistance to the common cold - and how that study can inform our approach to viruses today. But that's just the beginning in a wide-ranging discussion that touches on everything from vaccinations to tweaking the sleep patterns of a 4-year-old. Plus, Dr. Michael Grandner is back to discuss the latest in sleep science. LINKAPALOOZA: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4531403/ (Aric's study about sleep and the common cold) https://www.youtube.com/watch?v=OB61yG8WDyU (Aric's WIRED video) Recommendations and resources from Michael's group