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.
Heart diseases can damage the coronary arteries, which provide oxygen-rich blood to the heart muscle. Heart diseases can also impair the functioning or structure of the heart and blood vessels. Coronary artery disease causes most heart attacks and is the most common form of heart disease.The types of heart disease include: Atherosclerosis is a buildup of cholesterol, calcium and blood clotting material on the walls of the arteries.The material that builds up is called plaque.eart failure is a condition in which the heart has been damaged from a heart attack or other type of heart disease. Heart valve disorder is a malfunctioning heart valve that causes abnormal stress on the heart. Myocarditis is an infection of the middle layer of the heart wall.