How does sugar rush raise heart rate?

Answer:
Increased blood sugar levels cause an increase in cellular metabolism, the end goal of which is the production of ATP. ATP is the fuel for muscular contraction, including cardiac muscle contraction. An increased availability of ATP therefore leads to an increase in heart contractions.
First answer by ID1198503261. Last edit by Keh155. Contributor trust: 0 [recommend contributor recommended]. Question popularity: 14 [recommend question].