Gustav Heard That a New Sports Drink Would Bulk Up

Gustav heard that a new sports drink would bulk up his muscles. He was worried that the stuff would contain steroids but was assured by his coach that it did not. He tried small amounts at first but then became impatient for results and drank a lot. He collapsed and was rushed to the emergency room with a high temperature. Using the information in this chapter, which part of the brain was most affected?

A) cerebrum
B) hypothalamus
C) pons
D) insula