This document summarizes a researcher's evolution in studying the effects of exercise on cognition. It outlines the researcher's educational background and questions that motivated their research. It then describes a study designed to examine how a single bout of exercise may improve cognition in highly fit and low fit young adults. The study would compare the effects of 30 minutes of exercise or rest on cognition, autonomic function, stress, and anxiety. It would also analyze whether changes in heart rate variability after exercise are related to improvements in cognition.