The immune system is your body’s version of the military: sworn to defend against all who threaten it, both foreign and domestic. It has some really interesting soldiers that help make this possible. Your immune system protects against disease, infection, and helps you recover after an injury.

The immune system is a complex fighting system powered by five liters of blood and lymph. A lymph is a clear and colorless liquid that passes throughout the tissues of the body.

Together, these two fluids transport all the immune system elements so they can do their jobs.