Symptoms of ‘Covid brain fog’ include: memory loss, confusion, difficulty concentrating, dizziness, and troublesome cognitive symptoms such as forgetting everyday words; contextual photos of people not relevant to this article. (Picture taken from Unsplash)
[Compiled by Chen Chengliang/Comprehensive Report]Recently, the outbreak of Wuhan pneumonia (new coronavirus disease, COVID-19) Omicron variant virus has swept the world. Many people claim that this new variant strain will not become severe and can be treated as influenza or even common cold. look at. However, some experts are worried about the changes in the initial symptoms of Covid-19, and point out that a quarter of patients are suspected to have a terrible sequelae that may affect their ability to work for life.
The COVID-19 research team of ZOE Corporation in the United Kingdom used the outbreak tracking app “ZOE COVID Symptom Study” (ZOE COVID Symptom Study) developed by the company to summarize the five symptoms of Omicron, in addition to nasal discharge, headache, fatigue, sneezing Wait, in addition to the phenomenon similar to the common cold, 1 in 4 people will experience symptoms of “brain fog” (Brain Fog). The results of this study have attracted the attention of experts.
Common symptoms of “brain fog” include troublesome cognitive symptoms such as memory loss, confusion, difficulty concentrating, dizziness, and forgetting everyday words. More and more people who have recovered from the epidemic mentioned that brain fog is impairing their ability to work and daily operations, and the dementia that everyone is afraid of starts from brain fog.
According to a survey conducted by Northwestern University, 81% of patients with mild pneumonia in Wuhan had this symptom after they became ill.
Professor Shimobata Yukio, from the Department of Neurology at Gifu University in Japan, said that in the past, brain fog mainly appeared in sequelae, but the statistical results of “ZOE” show that now only in the “acute period (the period immediately after the disease)”, there are 1/1 4 people have brain fog. If symptoms persist for a long time, many people will suffer from this symptom in the future.
Scientists aren’t sure what causes brain fog, a phenomenon that varies widely from person to person. The leading theory is that brain fog occurs when the body’s immune system against viruses fails to stop responding, or when the blood vessels leading to the brain show signs of inflammation.
In response to the increase in brain fog, Professor Shibata pointed out three possibilities. First, when suffering from variants such as Delta, symptoms such as fever and dyspnea are more severe, while Omicron is mainly mild, so patients can easily detect the symptoms of brain fog. Second, few people knew about the existence of brain fog in the past, but after widespread media coverage, more and more people are aware of this phenomenon. Third, the Omicron variant can cause brain disorders.
In addition, only 10% of patients suffering from the past few variants had headache symptoms, but after Omicron appeared, it increased sharply to 68%. The proportion of symptoms such as fatigue and brain fog has also increased significantly, which is very different from the characteristics of other mutants in the past, which makes him worry that Omicron will really affect the brain.
Professor Shimobata pointed out that people don’t know much about this new variant. Don’t take this Omicron lightly because it won’t cause severe disease, and called on the public to still pay attention to epidemic prevention and vaccination.
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