The Thymus Regeneration Project: A Step Forward
Researchers at the Monash Biomedicine Discovery Institute made significant progress in their quest to rejuvenate an aging immune system. They identified the factors that are responsible for the age related decline of the Thymus.
As we age, the thymus shrinks
The thymus, one of the most vital organs of the body is where the thymocytes from the bone marrow are sent to be transformed into new T cells. These new T-cells will then be trained in lymph nodes and become the protectors of the adaptive immunity system. As we age, our thymus begins to shrink and turn into fat, which reduces its ability to make new T cells. This is called thymic evolution and begins soon after puberty. It is one of the early signs of aging.
Source:
https://www.leafscience.org/a-step-closer-to-regenerating-the-aging-thymus/