Consider your body’s water systems.

Cardiovascular…Blood, heart, arteries, veins. 90% water
Lymphatic…Lymph, collectors, ducts, nodes, B-cells, T-cells 96%water
Craniosacral… cerebrospinal fluid, brain and spinal cord 98%water

Interstitial Pool-extracellular water environment.
Cells floating, hydrating, nourishing & eliminating in the interstitial fluid

In a healthy body, there is always a small number of proteins, fats, bacteria,
viruses, fungi, metabolic waste and environmental pollutions.