Chronic infections refer to situations where the immune system struggles to fully resolve an infectious burden, leading to recurring or persistent symptoms. These may include viral, bacterial, or other microbial exposures that continue to affect energy levels, cognition, or overall resilience.

Functional medicine evaluation considers immune function, inflammatory load, nutrient status, and environmental or lifestyle factors that may impair recovery. The goal is to better understand why the body remains under stress and how to support immune balance over time.