How Your Immune System Protects Your Health
https://14421844.usana.com/pwp/#/site/274388309/page/45765518 for detail products that help support your immune system Your body is protected by a complex, coordinated force of cells and systems: A healthy, functional immune system is a complex machine. It contains many layers, subsystems, tissues, organs, and processes. The first layer of defense: Barriers – o Skin-a good waterproof physical barriers protects you against pathogens
o Upper respiratory tract-move potentially
