The increase of emotional stress has disturbing effects on the neurohumoral regulation of metabolic processes, especially in relation to the cardiovascular system, and increases the changes of organisms developing atherosclerosis. This book studies the effects on the cardiovascular system (in IHD patients) caused by emotions of diverse biological qualities (both positive and negative). At the same time, the relationship between these effects on the functional activity of various hormonal systems and the blood coagulation system are studied in order to determine the mechanisms and development of atherosclerotic processes.