Physical activity increases the effectiveness of vaccinations by 50%.

This is evidenced by a new study in which scientists collected and analyzed all available studies from seven of the largest databases regarding the effect of physical activity on the effectiveness of vaccinations and the likelihood of getting sick and dying from infectious diseases, including pneumonia, the most common cause of death in COVID-19.

According to Medportal.ru, since the study was conducted in the first months of the pandemic, it was not possible to include data on the coronavirus.

"In six studies involving more than half a million participants, we found consistent and compelling evidence that following recommendations for physical activity - 30 minutes, five days a week - reduced the risk of illness and death from infectious diseases by 37%," the scientists wrote.

They noted that these findings complement the results of a recent American study, which also confirms a direct link between physical activity and a decrease in the likelihood of contracting SARS-Cov-2.

Scientists have also found strong evidence that regular physical activity strengthens the human immune system. In 35 independent randomized trials, regular physical activity led to increased levels of IgA antibodies. These antibodies coat the lining of the lungs and other organs that are vulnerable to viruses and bacteria. Regular physical activity also increases the number of T cells, which alert the immune system to invading pathogens and regulate its response.

Active people have a lower risk of diabetes, obesity and cardiovascular disease - these are known to be serious complications of COVID-19 and other infectious diseases. Exercise relieves stress and chronic inflammation, while most pneumonia deaths are associated with an uncontrolled inflammatory response.