In psychology, stress is a feeling of strain and pressure. Small amounts of stress may be desired, beneficial, and even healthy. Positive stress helps improve athletic performance. It also plays a factor in motivation, adaptation, and reaction to the environment. Excessive amounts of stress, however, may lead to bodily harm. Stress can increase the risk of strokes, heart attacks, ulcers, dwarfism, and mental illnesses such as depression.
Myocarditis is inflammation/infection of the heart muscle. Pericarditis is inflammation the pericardium which is the sac surrounding the heart. Endocarditis refers to an infection of the heart valves. Myocarditis is inflammation/infection of the heart muscle. Pericarditis is inflammation the pericardium which is the sac surrounding the heart. In brief: Different structures. Endocarditis refers to an infection of the heart valves.  Pericarditis is inflammation the pericardium which is the sac surrounding the heart. In brief: Different structures. Endocarditis refers to an infection of the heart valves.
Pericarditis is a feature of several autoimmune conditions, especially systemic lupus erythematosus. It is also associated with renal failure and hemodialysis. Furthermore, pericarditis can develop because of injury to the pericardium as a result of trauma, surgery, instrumentation, or radiation therapy.onversely, cardiac tamponade and constrictive pericarditis lead to important and distinctive hemodynamic changes. Because the heart is constricted by fluid or a rigid fibrinous or calcified pericardium, negative intrathoracic pressure during inspiration is not transmitted to the pericardial sac.