Immune System - an overview

The immune system fights germs on the skin, in the tissues of the body, and in bodily fluids such as blood It is made up of the innate

5 things that can weaken your immune system · 1 Alcohol · 2 Smoking · 3 Processed food · 4 Stress · 5 Not enough sleep While sleep

endocrine system What is the immune system? The immune system is made up of organs, tissues, cells, and

muscular system The immune system is a complex network of organs, cells and proteins that defends the body against infection, whilst protecting the body's own cells