Your body consists of up to 60% water. Amazingly, the lung, responsible for air exchange, contains more than 80%. Each cell wraps around a blob of liquid teaming with functional components, each cells bathes in interstitial fluid, the brain and spine immerse the nervous system in cerebrospinal fluid.

Last, but not least, about 6-7 litres of blood circulate through one of the plumbing networks, which is about 100,000 km in length. The heart generates a vortex, pulling blood through its outlets. Expansion and contraction of blood vessels and connective tissue maintain the standing wave generated by the heart beat and regulate the amount of blood reaching different areas of your body.

Blood carries oxygen, the main fuel for your metabolism, but also hormones, nutrients, viruses. Roughly 3 litres of plasma facilitate the movement of blood cells and other bits, and also the exchange of chemical composites throughout the entire tissue.

Your inner liquidness, combined with some air in your lungs, allows the body to float on water. It even lets the bones float in the mesh of connective tissue, muscles, tendons and ligaments. When the flow on the inside gets interrupted, your movement will get less fluid as well.

The plumbing system organises the majority of the physiological components of the body, serving a variety of functions. Each of this aspects deserves a closer look, but as the system organises itself to a large degree, it takes little effort to keep it running.

Keep hydrated. The sensation of thirst warns the operator of a body (you) about the need for rehydration. Try to avoid this. Try to avoid drinking too much, either.

Avoid blood loss.

Move your body on a regular basis.


Instruction manual for human bodies – networks

All subdivisions of the system called human body are arbitrary to a certain extend, most ‘components’ prove essential to the survival and well being of the organism. Beneath your skin lies a complex, interactive system requiring smooth interactions of every cell involved. This manual uses other systems that have been engineered as comparison to illustrate functions of the human body.

The cells of a human body differ slightly from a single cell organism, as they specialise to become part of other subsystems (eg flesh, bones, blood, organs, etc). The environment of a human body cell determines which function it will fulfil, yet it still has the same life cycle as the whole organism.

Unless you’re very young, none of your body cells from your birth is still around. It takes about seven years to replace all of your currently existing cells with new ones. Most of the cells you move through the world aren’t even yours, as you carry more micro-organisms on your skin and in your guts than those with your own DNA.

Your digestive system needs a microbiome to function – without bacteria living in your stomach and intestines you couldn’t process food. ┬áThe human body compares well to a symbiotically living large community of autonomous entities, not so well to an army of obedient cells following the order of general brain.

Just after conception, unspecialised identical cells divide until there are enough to build a hollow sphere, the blastula. In the next stage of development, three different layers diversify the cells of an embryo into endo-, meso- and ectoderm.

The innermost layer, the endoderm will develop into most internal organs, the middle layer (mesoderm) gives rises to muscles, bones, connective tissue, heart, kidneys, gonads and the ectoderm ends up as skin, tooth enamel and the entire nervous system.

These three layers mix up thoroughly in the torso, while limbs and head only contain cells descending from the meso- and ectoderm. Several fractal interconnected networks within the whole body emerge: the nervous system, the fascia system and the circulatory system (blood vessels and lymphatic system).

The concept of morphogenetic fields offers the most plausible explanation to the magic of cells with identical DNA in the same environment suddenly diversifying and specialising.┬áDon’t worry too much if you couldn’t follow the quite technical description so far. I will point out the essential parts for the how-to section of the manual.

Here’s what you need to know from this section. Several interconnected systems work within the human body: An electrical system, a plumbing system and a structural support system.