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The respiratory illness COVID causes neurological symptoms in more than one-third of patients, ranging from loss of taste and smell to disorientation and movement disorders. The coronavirus may enter the brain through the olfactory nerve in the nose or by crossing the protective blood-brain barrier. This video is from Beain Brain Awareness Brain Dysfunction Contest. Like any other virus, the coronavirus infects the body by entering healthy cells to use them as a host for link replication.

It specifically uses the ACE2 receptor protein found on cells, especially epithelial cells in the respiratory tract. This allows it easy access to the respiratory tract lining and, most abundantly, the type II alveolar cells of the lungs. Emerging studies, however, point to the presence Dysrunction neurological symptoms as well in over one third Brain Dysfunction coronavirus patients. Patients of various levels of coronavirus exhibit these neurological symptoms.

Effects seen in milder cases and especially in young people include headaches, dizziness, brain inflammation, and strokes. These particular symptoms have primarily been observed to be the outcome Brain Dysfunction robust immune responses that inadvertently result in the targeting of nerve cells.

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This can produce the unintentional inflammation or death of neurons. For example, Guillain-Barre syndrome, a neurological disorder that causes neurons to mistakenly be attacked by the immune system, has been associated with coronavirus, and Brain Dysfunction result in neuronal death as well as side effects such as pain and neural inflammation, which cause some of the other symptoms mentioned. These patients can Brain Dysfunction only experience milder neurological effects, but also experience muscle weakness, loss of senses—specifically smell and taste—, strokes, seizures, and hallucinations.

These symptoms are usually transient, but some patients have experienced symptoms such as disorientation, inattention, and movement disorders that persist even after coronavirus treatment and recovery. Patients who experience more severe effects display infected neurons in addition to respiratory cells, indicating that the virus has somehow directly reached the brain.

While not much is currently known about the exact means by which the virus can enter the brain, there are two major theories about the mechanisms by which this can take place. Brain Dysfunction first explanation is through the nose. Since the olfactory nerve is the only cranial nerve exposed to the outside world, the associated neurons might act as carriers for the virus.

Infection of the olfactory Brain Dysfunction in the nose might actually serve as a connector that enables the coronavirus to spread directly from the respiratory tract to the brain. This could also explain the loss of smell and taste that have been reported in certain patients. And, from the method of nasal swabbing used to test for the virus, we do know that the virus is somehow housed in the nose.

The second explanation is that the virus could also spread through the blood to reach the brain.]