Question

Have you heard about hypoxia? Try to gather information about it, and discuss it with your friends.

Answer 1

Yes, I heard it basically it is a condition where the tissues are not oxygenated adequately, usually due to an insufficient concentration of oxygen in the blood. The oxygen loss can have serious antagonistic consequences for different body cells that need to perform significant biological cycles.

Complete step by step answer:
The brain relies upon the blood to give it a consistent supply of oxygen. Consequently, disturbances to any aspect of the body that assumes a function in blood or oxygen supply can prompt hypoxia. The four essential causes of hypoxia are:
No blood supply to the brain: This occurs when the blood vessels that supply the brain with blood are completely obstructed. This is extremely rare, and usually fatal.
Low blood supply to the brain: Low blood supply can occur when even a single blood vessel is blocked or partially obstructed, as often happens with a stroke. This type of hypoxia can frequently affect a particular region of the brain, which interferes with functions governed by that region.
No blood oxygen: When the body can’t take in oxygen, or the heart or lungs can’t properly provide the blood with oxygen, the brain - - and all other organs - - suffer from hypoxia. This is quickly fatal.
Low blood oxygen : When the body can not properly oxygenate the blood, often due to illnesses such as emphysema or a crisis such as a heart attack, the brain gets less oxygen to function properly.
Numerous illnesses and injuries can cause hypoxia. Those include:
- Traveling to high altitudes, especially for people in poor health and for those who quickly rise to high altitudes.
- Carbon monoxide poisoning.
- Strangulation or smothering. For example, the chokeholds that some law enforcement officers use can cause hypoxia if held too long.
- Very low blood pressure, which is usually caused by something else, such as a hemorrhage.
- Smoke inhalation.
- Choking.
- Heart attack or stroke.
- Medical conditions such as a heart attack or stroke.
- Allergic reactions that lead to anaphylactic shock.
- Severe cases of asthma.
- Allergies
- In infants, improper sleep positions or unsafe sleep environments.
- Hyperventilation.

Note: The timeline from initial hypoxia to death or brain damage varies with the degree of oxygen deprivation. Minor oxygen loss just aims harm over time; however evident hypoxia triggers close prompt harm. Brain damage can start inside a moment or two of total oxygen loss. At the five- minute mark, death of brain cells and the severe brain damage that accompanies it becomes inevitable. The vast majority will die inside 10 minutes of total oxygen deprivation.