Anemia: blood has less red blood cells as usual
Myocardial infarction: interrumptio of the blood flow to an area of the heart.
Hipertension: excessive pressure over the arteries walls.
Arteriosclerosis: Apperance of plates of fat, calcium, cholesterol and other substances in the arteries walls.
Leukemia; the bone marrow producess less white blood cells as usual.
Edema is the accumulation of water in the tissues
