Lack Of Oxygen And Brain Damage  

One of the most important things for the survival for any living organism is oxygen. Oxygen is vital for life and the human body needs a constant supply of it. Lack of oxygen for even a short duration can cause suffocation and death in a person. When there is a lack of oxygen in the body, the brain gets directly affected by it as it can result in brain damage.

When the brain is deprived of oxygen, the brain cells start dying immediately. It cannot live more than five minutes in such a case. There are several reasons why there could be a lack of oxygen in the brain. Some injuries that take place during birth of an infant can result in lack of oxygen supply to the brain. Some infants get hurt in the birth canal and it is one of the biggest dangers of a normal birth. When the oxygen is cut off to the brain, it is known as cerebral hypoxia. (See Reference 1)

There are a few more causes for cerebral hypoxia, like carbon monoxide poisoning. Extreme exposure to gases like these can cause poisoning. Even cigarette smoke and pollution expose a person to these poisonous gases. Some times breathing in excessive smoke, which is identified by a condition called asphyxiation, also causes suffocation and shortage of oxygen supply to the brain. Any kind of activity that causes choking and suffocation will lead to brain damage. Other than these, heart attacks, ischemic strokes, and paralytic attacks can cause a decrease in blood supply to the brain leading to lack of oxygen and subsequent brain damage. Cardiac arrest is the number one killer which also causes brain damage to a large extent. Asthma is a disease that can suffocate a person and cut of the connection between the lungs and the brain. So, there could be a lack of oxygen supply to the brain. (See Reference 1)

Suicidal tactics like hanging yourself or strangling can cut off the oxygen supply and even if it is not fatal there could be a considerable amount of brain damage. Drowning in rivers while swimming or accidents like that can cause brain damage. Think of any situation where you cannot breathe and are suffocating and the direct repercussion of that incident would be brain damage. (See Reference 1)

Low blood pressure sometimes can cause severe low levels of oxygen in the blood and therefore directly affecting the brain. Also, complications that can arise due to general anesthesia may cause this condition. (See Reference 1)

Whenever there is a brain damage, the symptoms like inattentiveness, dizziness, fainting, nausea and vomiting show up. The person may also experience headaches. (See Reference 1)

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