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 disease describes a range of conditions that affect your heart. Diseases under the heart disease umbrella include blood vessel diseases, such as coronary artery disease; heart rhythm problems (arrhythmias); and heart defects you're born with (congenital heart defects), among others.he term heart disease is often used interchangeably with the term cardiovascular disease.. Cardiovascular disease generally refers to conditions that involve narrowed or blocked blood vessels that can lead to a heart attack, chest pain (angina) or stroke.