The Relevance of a Physical Active Lifestyle and Physical Fitness on Immune Defense: Mitigating Disease Burden, With Focus on COVID-19 Consequences

This is a long one—weighing in at 23 pages, but it’s a wealth of information and all science-based insights I believe in. From The Frontiers of Immunology, this 2021 article does a great job of celebrating physical activity as something you can do for yourself as an extra layer of protection.