The Immune System

6 Ways to Boost Your Immune System immune system The immune system recognizes invaders by their antigens, which are proteins on the surface of the invading cells Every cell or substance has its digestive system The immune system is made up of antibodies, white blood cells, and other chemicals and proteins that attack and destroy substances such as bacteria and viruses

muscular system Autoimmune disease · Type 1 diabetes The immune system attacks the cells in the pancreas that make insulin · Rheumatoid arthritis This type of arthritis