Why does hypoxia cause euphoria

For example, hyperoxic effects depend strongly on the altitude i. Sign up to join this community. The best answers are voted up and rise to the top. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Learn more. Euphoria from oxygen deprivation Ask Question.

Asked 3 years, 10 months ago. Active 1 year ago. Viewed 3k times. Improve this question. Fizz Fizz 9, 1 1 gold badge 20 20 silver badges 55 55 bronze badges. Add a comment. Active Oldest Votes. The occipital lobe at the back of the brain contains the main visual centres and it is particularly susceptible to anoxia, which may cause a loss of visual function referred to as cortical blindness.

Damage to the occipital lobe may also lead to conditions such as Anton's syndrome. This is a rare condition, in which a patient with cortical blindness may show no awareness of the loss of vision and deny any problem, despite walking into things and showing obvious evidence of an inability to see normally. Conversely, patients may experience blindsight , in which they may respond to visual stimuli without being consciously aware of being able to see.

The hippocampus , on the inner surface of the temporal lobe, is an important structure for memory function and it is sensitive to anoxic injury. Memory problems are very common following cerebral anoxia and they may be quite severe. Disturbances of speech and language function may occur because of damage to areas of the brain involved in the production and articulation of speech, finding the right words and understanding language.

Spoken and written communication may both be affected. Damage to the frontal lobes may lead to disturbances in executive function - the ability to think and reason, to synthesize and integrate complex information and make considered judgements and decisions about what to do in a particular situation.

These skills underlie the ability to plan for the future in a sensible way, as well as to function effectively in work and social settings.

Frontal lobe injury may produce changes in personality, including irritability, poor tolerance of frustration, impulsiveness and impairments in social perception and conduct. There may be apathy and lack of insight, as well as intermittent agitation and mood swings, or more sustained periods of depression. These changes may slow the progress of rehabilitation and make it difficult to achieve a successful return home. Occasionally, severe anoxic injury can cause damage to the hypothalamus or pituitary gland, which can lead to a variety of hormonal problems, such as hypopituitarism.

This is caused by a reduction in the release of hormones by the pituitary gland and symptoms include excessive tiredness, muscle weakness, decreased sex drive, inability to regulate body temperature, weight gain, low blood pressure, dry skin and headaches. Hormone replacement therapy can be used to treat hypopituitarism and other related disorders.

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Hypoxic and anoxic brain injury The brain needs a continuous supply of oxygen to survive. A number of factors can help to predict the outcome after cerebral anoxia: Age As with other forms of acquired brain injury, people over the age of 50 years tend to do less well overall than younger ones, both in terms of how likely they are to survive in the first place and in the degree of long-term recovery. Duration of the anoxic episode The outcome will be determined by how extensive the damage to the brain has been.

Duration of coma The duration of unconsciousness after an anoxic episode reflects the severity of the injury to the brain and helps predict the outcome. Pupil reaction Normally, the pupils will constrict when a bright light is shone into the eyes. Electroencephalogram EEG The EEG displays the electrical activity of the brain, recorded from a set of small metal disc electrodes placed on the scalp.

Brain imaging Computed Tomography CT and Magnetic Resonance Imaging MRI can show if there is brain swelling and give an indication of the degree of damage to the brain and the areas affected.

Reduced awareness states If there has been very severe anoxic damage to the brain, there may be a transition from coma into a persistent vegetative state PVS. Physical effects Damage to the cerebral cortex , the cerebellum and the basal ganglia may lead to limb weakness and disturbances of movement, balance and co-ordination. Visual disorders The occipital lobe at the back of the brain contains the main visual centres and it is particularly susceptible to anoxia, which may cause a loss of visual function referred to as cortical blindness.

Memory problems The hippocampus , on the inner surface of the temporal lobe, is an important structure for memory function and it is sensitive to anoxic injury. Speech and language Disturbances of speech and language function may occur because of damage to areas of the brain involved in the production and articulation of speech, finding the right words and understanding language. Executive dysfunction Damage to the frontal lobes may lead to disturbances in executive function - the ability to think and reason, to synthesize and integrate complex information and make considered judgements and decisions about what to do in a particular situation.

If the pump does not have oxygen then this mechanism stops. This results in an increase in extracellular glutamate. It is possible although I do not have any papers to link to demonstrate this so please accept as an educated guess rather than a fact that the increased extracellular glutamate results in the activation of the reward center to produce the euphoric feeling.

However also note that hypoxia causes a lot of damage to the nerve cells that are very reliant upon a steady oxygen supply. People who undertake recreational asphyxiation, even if they survive, are causing damage to their brain cells. Post a Comment. Myelin is an important part of the nervous system and is vital for optimal cognitive function.

Read more below to learn how to increase myelin in your body. Introduction Myelin is a sheath made out of fats and proteins that wraps around the axon end of a nerve cell. It helps the nervous system function properly R , R. It improves the conduction of action potentials, which are needed to send information down the axon to other neurons R.

The myelin sheath increases the speed of impulses in neurons. It facilitates conduction in nerves while saving space and energy R. Demyelination happens when the nerves lose the myelin sheath that insulates them.