esses are functions that are related to the brain.2.Studies that have compared test performances of people differing in physical fitness levels support the view that cognitive function is increased by physical activity.a.[Spirduso, 1980]Concluded that a positive relationship exists between physical fitness and motor functions, such as reaction time and movement time. b.[Dustman, et al, 1984]More recent research has shown that aerobic fitness training improves psychological test and memory test performance.c.While some studies show no positive relationship between memory-search performance and exercise [Blumenthal, Madden, 19??], these studies were performed only after a short training regimen was undertaken by the participants in the study.d.The studies which did show a positive relationship, had the subjects participate in a training program for 4x longer than the studies which did not find a relationship.3.Summarya.Though research results have not been totally consistent, they seem to indicate that physical fitness improves the way in which the brain functions. III. ConclusionA.Benefits1.Exercise improves, mood and psychological well-being; especially immediately following exercise. 2.While, Self-concept and self-esteem are also improved, physical activity has little effect on a person's personality.3.Exercise is also likely to decrease mild anxiety, depression, and stress. It may also improve work-related habits.B.Other1.Though there are many theories on exactly how exercise improves psychological well-being, no one theory has any substantial experiential evidence to back it up. 2.There has been virtually no research regarding the frequency and duration of exercise sessions on mental health. Thus, it is impossible to determine the optimal frequency and duration of exercise for psychological improvements. 3.Finally, the types of exercise that enhance psychological functioning the most have not been determined. This is because most r...