The immune system defends against infections, regulates inflammation, and maintains health through proper nutrition, exercise, sleep, hydration, and stress management.

Brain health and immune system function are closely linked, as inflammation and stress impact both cognitive function and immunity. A strong immune system protects the brain from infections and skilled nursing care facilities neurodegenerative diseases, while a healthy brain regulates immune responses. Proper nutrition, exercise, sleep, and stress management support both systems, enhancing overall well-being, cognitive function, and disease resistance.