Iraj Shahraki - Department of Nursing, Young Researchers and Elite Club, Zahedan Branch, Islamic Azad University, Zahedan, Iran
Amir Rigi - Department of Nursing, Young Researchers and Elite Club, Zahedan Branch, Islamic Azad University, Zahedan, Iran
Arya Porhasan - Department of Laboratory sciences, Young Researchers and Elite Club, Zahedan Branch, Islamic Azad University, Zahedan, Iran

The world’s population is aging, and aging is that the greatest risk factor for nearly all major chronic diseases, including cardiovascular diseases, cancer, Alzheimer's, and other neurodegenerative diseases of aging. Understanding the aging of the human system has become a subject of interest even for non-specialists. Especially in conjunction with global demographics, the prevalence of disease among the elderly underscores the necessity for a far better understanding of how physiology changes with age. The human system undergoes major changes with age that lead to altered immune populations, and aging is taken into account to be a decline in physical and physiological events that extensively affect the body's immunity.

aging, immune system, process