In a recent study recently published in The Lancet journal, a team of researchers conducted an extensive database search to identify studies with consistent data on structural and functional changes in organs and body parts caused by the vagus nerve in individuals with post-COVID syndrome (PCS) or long-term coronavirus disease.

The aim of the study was to determine whether vagus nerve dysfunction has a central pathogenetic role in the pathophysiology of PCS.

Most of the 341 study participants with PCS were women who had allergies before COVID-19. In addition, 67 percent of participants had one or more symptoms related to the vagus nerve, with people with PCS having more symptoms than people who had recovered from COVID-19 and were not infected with SARS-CoV-2.

According to the results of the study, in more than 60 percent of patients with PCS, a considerable decrease in the thickness and mobility of the diaphragm was observed, which indicates the weakness of the respiratory muscles, which can be the cause of wheezing.