Remind everyone that staying active regularly, regardless of age, is a great way to boost immune defenses. Studies demonstrate that people with higher levels of cardiorespiratory fitness and those who exercise at moderate-to-vigorous intensity levels can improve immune responses to vaccination and reduce low-grade chronic inflammation. University of Arizona faculty, from the Department of Immunobiology in Tuscon, note that while exercise may not prevent people from developing COVID-19, evidence from other viral infections indicates that physically active people may experience less severe symptoms, have shorter recovery times and be less likely to infect others.
UA authors point out that while older adults are at higher risk during the pandemic, those who stay active may have a better response to the COVID-19 vacccine, once it is available. There is evidence that this has been the case with both influenza and pneumococcal vaccines in the past.
The viewpoint appeared in Brain, Behavior, and Immunity (2020; doi:10.1016/j.bbi.2020.04.041).
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