[1] Duggal, N. A., Pollock, R. D., Lazarus, N. R., Harridge, S., & Lord, J. M. (2018). Major features of immunosenescence, including reduced thymic output, are ameliorated by high levels of physical activity in adulthood. Aging cell, 17(2), e12750. https://doi.org/10.1111/acel.12750
[2] Aw, D., Silva, A. B., & Palmer, D. B. (2007). Immunosenescence: emerging challenges for an ageing population. Immunology, 120(4), 435–446. https://doi.org/10.1111/j.1365-2567.2007.02555.x
[3] How to boost your immune system. Harvard Health. (2021, February 15). https://www.health.harvard.edu/staying-healthy/how-to-boost-your-immune-system.
[4] Simpson, R. J., Campbell, J. P., Gleeson, M., Krüger, K., Nieman, D. C., Pyne, D. B., Turner, J. E., & Walsh, N. P. (2020). Can exercise affect immune function to increase susceptibility to infection?. Exercise immunology review, 26, 8–22.