Dr. Aric Prather introduces his field of work as a clinical-health psychologist.  He stresses the fact that too much stress or not enough sleep is bad for us and we are starting to look inside the body to understand why, as well as understand who is especially vulnerable, who is resilient, and what types of interventions might be most effective.  He also introduces and expands on his latest project that studied correlation between sleep and sickness.  Dr. Prather concludes the interview by telling us a few fun facts about his work with sleep and what his work means for our future.