What Does Fitness Mean, Part Two
Heart disease can be potentiated by stress as during stress the adrenaline secretion forces the blood vessels to narrow which increases blood pressure and venous return to the heart, thereby increasing demands on the heart and leaching cholesterol out of the tissue into the blood supply. Stress can maintain the activity in the reticular activating system or RAS, elevating coronary disease risks and the tendency to react with anger. Exercise can reduce the risks if managed correctly.

