Mohammad Alsudairy, N., Sameer Ibrahim Saeedi , S. ., Abdullah Alfarhan, N. ., HUSSAIN MOHAMMED AL HAMID, A. ., Hussain A Alqawain, A. ., Ali Ahmed AlDawood, Z. ., Jawad Aljumah, D. ., Althobaiti, H. S. ., Ghassan Sadeq, . A. ., Mohammed Abdullah Alnemari, F. ., Abdulatif A Tashkandi , A. ., Hamed A Alharbi, A. ., Alsufyani, A. khalid, Ali A Alshehri, M. ., & Ali Shebaily, R. (2022). The Effect of Ageing on The Immune System, A Review. Saudi Medical Horizons Journal, 2(2), 70–75. https://doi.org/10.54293/smhj.v2i2.43