New: Aging Zombie Cells: Cancer Expert Joins Saranne

Today, Saranne welcomes back functional medicine expert Jacqui Bryan to examine the science behind immune system aging and the role of so-called "zombie" senescent cells. Saranne recounts her determination to rebuild her immune system after Stage IV cancer treatments while Jacqui provides clear explanations for why immune function declines with age and offers practical ways to strengthen defenses. Listeners learn how lifestyle choices like nutrition, movement, and stress management can profoundly impact immune health, especially for cancer survivors.

Jacqui Bryan is a whole health educator, certified nutrition specialist, registered nurse, and health coach with deep expertise in functional medicine. Drawing on her experience as both a clinician and long-time cancer survivor, she educates and motivates others to make simple but effective changes to improve immune health at every stage of life. Jacqui’s "food first" philosophy and real-world advice have made her a go-to resource in the cancer support community.

"We cannot prevent aging…but some of us may age a little bit more gracefully than others, and our immune systems might stay a little bit stronger." ~Jacqui Bryan

Today on Beating Cancer Daily:

·     Immunosenescence describes the gradual weakening and remodeling of the immune system as we age

·     Cancer survivors, especially after treatments like chemotherapy, may need to work even harder to keep their immune system resilient

·     The thymus gland produces naive T cells, but it shrinks with age, leading to fewer new immune defenders

·     Senescent "zombie" cells linger in the body, creating persistent low-level inflammation that increases disease risk

·     Regular movement, including brisk walking and strength exercises, has been shown to reduce markers of immune aging and improve function

·     Sleep is a crucial pillar for immune recovery and resilience, just as important as nutrition and exercise

·     Eating a Mediterranean-style diet rich in vegetables, fruits, beans, nuts, and healthy fats helps lower inflammation and support immune health

·     Vitamins C, D, E, zinc, selenium, and omega-3 fatty acids are vital for maintaining immune strength throughout the aging process