Decifering the Code of Immunosenescence, Inflammaging& B-Cell Drift

The age-related decline of the immune system, long considered an inevitable consequence of aging, is now understood as a modifiable, interconnected systems failure driven by two core processes: immunosenescence and inflammaging(definition) [1]. Immunosenescence is the functional deterioration of immune responses, leaving older adults vulnerable to new infections and blunting vaccine efficacy [2]. Inflammaging is a chronic, low-grade systemic inflammation that fuels nearly all major age-related diseases, from cardiovascular disorders to neurodegeneration [3]. These processes create a vicious cycle: a weakened immune system fails to clear inflammatory triggers, which in turn accelerate immune cell aging [4]. This report synthesizes the mechanisms, consequences, and emerging interventions for this critical aspect of human health.