Already the Babylonians connected this Zodiac sign and the constellation with the mythological animal, sort of a mermaid goat. They called it the Goat-Fish. The reason for this is hidden in history.
Without an adequate blood supply, the heart muscle is deprived of oxygen and nutrients and waste products manufactured by the cells accumulates in the muscle tissue. Depending on the severity, it may cause myocardial ischemia, which is damage but not death of the muscle due to an inadequate blood supply. Alternatively it may cause death of the muscle tissue which is known as a myocardial infarction (MI).
Hypoglycaemia, or blood sugar that's too low, can also lead to a coma. Oxygen deprivation: Oxygen is essential for brain function. Cardiac arrest causes a sudden cut-off of blood flow and oxygen to the brain. After cardiopulmonary resuscitation ( CPR), survivors of cardiac arrest are often in comas.