Photo d'illustration. Le cerveau humain.

According to a new study, Covid-19 patients experience greater tissue loss in areas of the brain as well as an even greater reduction in brain volume.

As the epidemic progresses, Effects of the Covid-19 virus On health detailed. In a new study published In Nature On March 7, 2022, researchers came to view his photo effect on the brain. The work particularly emphasizes Adverse effect associated with SARS-CoV-2 In the brains of people infected with the virus months ago, even in cases of mild forms of the disease.

The brain has been severely affected by the Covid-19 virus

This study of 785 British adults found that tissue in areas of the brain associated with smell showed signs of shrinkage in adults infected with the Covid-19 virus. In addition, they found that older adults have more difficulty performing complex mental tasks. These conclusions were reached after analyzing brain scans taken from people before and after injury.

Gwenel Dowd, Principal Investigator and Professor at the University of Oxford, UK, identifies in particular: We are still not 100% sure of a causal effect of infection. But, we can separate the effects we observe from the differences that may have been pre-existing in the participants’ brains before they were infected with SARS-CoV-2. Globally, There is still a decrease in brain volume.

Joanna Hellmuth, a neurologist at the University of California, San Francisco, hypothesizes that these changes in the brain are due to ” lack of sensory input This hypothesis is explained by the fact that tissue contraction occurred mainly at the level of regions associated with odors.

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However, researchers are reassured by determining that infection with the Covid-19 virus causes only small brain changes, which do not necessarily mean cerebral degeneration.

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