Researchers find the cause of Covid’s long-standing “brain fog” symptom

“Brain fog” is one of the most common symptoms after corona disease. Those affected cannot think clearly, are forgetful and mentally exhausted. How long this condition lasts or what can be done about it is still unclear. However, scientists now understand the cause of the long-lasting Covid symptom.

According to researchers from La Trobe University in Melbourne, Australia, brain fog could have a similar origin to other neurological diseases, including Alzheimer’s, Parkinson’s and dementia. According to this, protein deposits could be the cause of Covid’s long-time “brain fog” symptom.

What is brain fog?

“Brain fog” manifests itself in symptoms such as concentration problems, orientation difficulties, difficulty finding words, sudden forgetfulness and mental exhaustion. Symptoms appear in the context of a Covid-19 infection and last long after the illness, which is why they are considered a typical sign of Long Covid.

Not all coronary patients suffer from Long Covid, which is why the cause of the various phenomena is not yet clear. However, there are risk factors and possible causes that lead to some recoveries suffering from Long Covid and others not (reported FITBOOK).

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Same cause of Alzheimer’s and companions?

Since the neurological effects of Covid-19 are very similar to neurodegenerative diseases like Alzheimer’s and others, Australian researchers looked for other similarities. They found that in both cases amyloid plaques were found between neurons in the brain. These are protein fragments that are produced by the body. In a healthy brain, these fragments are broken down and dissolved. In Alzheimer’s patients, they accumulate in hard, insoluble lumps.

Perhaps amyloid plaques are the cause of brain fog as a symptom of Long Covid. However, more research is needed to say for sure, says study leader Dr. Nick Reynolds of the Institute of Molecular Sciences at La Trobe University. He and his team also warn against jumping to conclusions. Even if the cause is the same, it doesn’t necessarily mean that long-time Covid patients with “brain fog” suffer long-term damage or that it profoundly affects thinking or memory function.

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The study gives hope for new treatment options

The study gives hope to those suffering from “brain fog”: by uncovering the cause, there may soon be treatment options for the long-standing symptom of Covid. Dr Reynolds explains, “It is possible that existing medications could be used to treat brain fog, which affects a significant percentage of people who have covid long after SARS-CoV-2 infection.”4 Drugs normally designed to relieve symptoms of Alzheimer’s and Parkinson’s could therefore be used to combat brain fog.


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