According to a study, playing sports not only strengthens the immune system, but even helps vaccines. This is stated in an article in the scientific journal The Conversation, signed by Sebastian Chastin, a professor at Glasgow Caledonian University (Scotland).
“In 35 studies, regular physical activity led to high levels of the IgA immunoglobulin antibody. This antibody covers the mucous membrane of the lungs and other parts of our body where viruses and bacteria can enter. Regular physical activity also increases the number of CD4 + T cells, which are responsible for alerting the immune system to an attack and regulating its response, ”writes Sebastian Chastin, using technical explanations.
By reviewing the studies, the researchers found that vaccines also appear to be more effective when given after a training program, even a moderate one: “An active person is 50% more likely to have a higher number of antibodies after training. vaccine than an inactive person ”.
According to scientists, there are 3 mechanisms that make physical activity an additional defense against infectious diseases. It is also a vaccine enhancer.
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First of all, exercise protects against the risk factors of serious and fatal infection. “Physically active people are less likely to develop obesity, diabetes, respiratory and cardiovascular disease. Epidemiological studies have shown that COVID-19 and other infectious respiratory diseases are more serious for people with these conditions, “said a lecturer from the University of Caledonia in Glasgow.
Physical activity also reduces stress and chronic inflammation, which in turn reduces the likelihood of fatal infections. “Most deaths from COVID-19 and pneumonia were the result of an uncontrolled inflammatory response,” explains Chastin. Finally, our immune system is stronger if we are physically active.
Analyzing the various studies, Scottish researchers were also able to quantify the health of those who practice physical activity. “We found consistent and compelling evidence in 6 studies involving more than half a million participants that adherence to recommended physical activity guidelines – 30 minutes of activity, 5 days a week – reduces the risk of disease by 37%.”
Keeping fit could also give us a little help against Covid. “Unfortunately, a decrease in physical activity levels has been observed globally in the last year,” Chastin points out.
“This is a dangerous trend that could make the population more vulnerable to infectious and chronic diseases in the short term. If left unchecked, it will leave a long-term harmful legacy and increase the burden of the disease and its social and economic costs. “
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