Although willpower and ego depletion may be somewhat controversial, take a listen to this NPR conversation with John Tierney, coauthor of Willpower: Rediscovering the Greatest Human Strength. Note down points you think are important in this news story, to keep in mind as we discuss the action potential and neurotransmitters.

Based on what you’ve seen so far in this course, why does it make sense that willpower requires energy, specifically glucose? How might this be related the phenomenon of decision fatigue?