Oil doesn't suddenly go rancid, it slowly becomes more oxidized and as it does, the flavor suffers. Different oils age at different rates. Some olive varieties make oil with more natural antioxidants which resist ageing. These oils may be good for up to 3-4 years if properly stored in unopened containers. Other oils, particularly unfiltered oils, may be unpalatable in a year even if stored well. A two year old olive oil may taste rancid to some while others don't mind it.
Hepatitis, inflammation of the liver, is caused by various viruses (viral hepatitis) also by some liver toxins (e.g. alcoholic hepatitis), autoimmunity (autoimmune hepatitis) or hereditary conditions.
Cardiovascular diseases include arteriosclerosis, coronary artery disease, heart valve disease, arrhythmia, heart failure, hypertension, orthostatic hypotension, shock, endocarditis, diseases of the aorta and its branches, disorders of the peripheral vascular system, and congenital heart disease.ardiovascular diseases include arteriosclerosis, coronary artery disease, heart valve disease, arrhythmia, heart failure, hypertension, orthostatic hypotension, shock, endocarditis, diseases of the aorta and its branches, disorders of the peripheral vascular system, and congenital heart disease.