Covid-19 is a disease capable of compromising various systems of the organism. One of the consequences found in the medium and long term is what is called post Coronavirus "cognitive fog", a sort of mental blurring and fatigue, which affects the healed. who find it hard to do everyday actions such as working, driving a car or shopping. Scientific research on the causes and symptoms of cognitive fog is still at the beginning, but several studies have been completed in Italy and in the USA, such as the studies of Centers for Disease Control and Prevention Usa (CDC), confirm that about a third of those recovered from Covid-19 have shown mental fatigue, difficulty concentrating or focusing, and a sense of loss.
mental, difficulty concentrating, recurrent amnesia, prolonged or short-term memory loss, learning disorders, chronic fatigue, sense of loss. It was found that patients recovered from Covid-19 struggled to find the working rhythms of before and they felt overwhelmed and disoriented in carrying out the usual practices and performing the usual duties.Not only that, cognitive fog has often manifested itself with small momentary memory losses such as: forgetting actions of a few days before, the way to go by car and the model of your car itself, or again, how to find your way around the shelves of the usual supermarket. The asthenia, which manifests itself not only in elderly subjects, but also in patients in their twenties, could be partly due to the impact that the pathology had not only from an organic point of view, but also on morale, motivation, psyche . Isolation and hospitalization are events in themselves that trigger a cognitive trauma. Viral infections that last so long lead to a decrease in the performance of the central nervous system. This explains the loss of attention which has the effect of decreasing the ability to memorize of many events of daily life.
The same symptoms as what is often referred to as "clouded brain" have also previously been found with other well-known viruses such as SARS and Middle East Respiratory Syndrome (MERS). These cognitive symptoms related to having contracted the virus, having experienced the disease and having defeated it, usually regress spontaneously with the passage of time.
nerves are currently being studied by many international researchers. Numerous follow-up studies are in progress all over the world which will make it possible to understand the extent and duration of these effects that occur even after the double negative swab (which determines official recovery from the virus).
A range of symptoms, even persistent and lasting, which tend to become chronic in subjects recovered from the infection. The neurological effects and the "cognitive fog" are certainly not the most serious. Many patients complain of severe headaches, loss of taste and " sense of smell, dizziness, insomnia, skin rash and even arrhythmia, which can last weeks to months after infection. In severe cases, Covid-19 can also lead to encephalitis or stroke. The causes may lie in the immune system response. : when the immune response to the virus does not stop, as in most autoimmune diseases, cytokines, inflammatory molecules released by the immune system in order to counter the pathogenic invader, can also turn into a sort of toxin, in particular for the brain. Another cause could be inflammation in the blood vessels leading to the brain. Post Covid syndrome, which also includes cognitive fog, not only has physical overwhelms on patients, in the short or long term, but can be considered to all intents and purposes as a post-traumatic stress disorder, in which cognitive difficulties occur. and persistent emotional.
