Which of the following molecules is responsible for "runner's high," a good feeling that accompanies long-distance running?
A) Beta endorphin
B) Acetylcholine
C) Epinephrine
D) Dopamine

Question

Quizplus · Accepted Answer

Beta endorphin is a natural painkiller and mood enhancer that is released during exercise, particularly long-distance running. This release of endorphins is thought to be responsible for the "runner's high" feeling experienced by some runners. Acetylcholine is involved in muscle contraction, epinephrine is released in response to stress and is responsible for the "fight or flight" response, and dopamine is a neurotransmitter associated with pleasure and reward, but it is not typically associated with runner's high.

Which of the Following Molecules Is Responsible for "Runner's High