Aging: Immune Function and Organ Health - Abstract Support is requested for a Keystone Symposia conference entitled “Aging: Immune Function and Organ Health,” organized by Drs. Anne Brunet, Eric M. Verdin, Manuel Serrano and P. Eline Slagboom, with scientific programming input from Keystone Symposia. The meeting will take place March 22–25, 2026 at the Fairmont Banff Springs in Banff, Alberta, Canada. Aging is the single largest risk factor for a wide spectrum of chronic diseases and mortality, and the immune system is emerging as a crucial player in regulating the human lifespan. Recent studies have revealed that aging can be influenced by changes in immune function and inflammation, offering new treatment approaches to counter aging and age-related diseases. This Keystone Symposia meeting will bring together an interdisciplinary group of researchers to address the impact of the immune system on organ preservation and organ-organ communication, which are critical for organismal longevity. This meeting will also highlight transformative technologies and discuss how engaging the immune system can create opportunities for therapeutic interventions that benefit human health. This meeting will be held jointly with another Keystone Symposia conference, “Innate Immunity: Diversity in Host Defense and Disease.” This partnership will provide valuable insights into the interconnected role of the immune system in aging, its relation to organ function, and implications for organismal health and disease.