Born in the fifties and three years short of sixty, I seem to have been blessed with the genes and metabolism which seem oblivious to the abuse I have given them. Generally a healthy later middle aged male, I am fortunate to have been born, and still living, where I do here in British Columbia. But life is still life and when one is an anatomically and behaviourally modern Homo sapien, living in a body composed of mostly water and oxygen, things are bound to happen.
Beneath the hair of an average adult human, no matter the race, color, faith, or where they live, sixty per cent of their body’s weight and volume is water. Incredulously, it stands, can fall, and get back up. The body also contains about five and a half litres (just over one gallon) of blood, and about ten litres (two and a half gallons) of interstitial fluid, which washes and surrounds our trillions of cells. Other elements of the body include oxygen (sixty-five per cent), carbon (eighteen per cent) and other trace elements such as hydrogen, nitrogen, calcium, potassium, sulphur, sodium chlorine, and magnesium, to name but a few.
Materials include protein, connective tissue, fats, carbohydrates and bone, with operating systems that include mechanical, physical, and bio-electrical and biochemical functions, which make up such a life form, and the machine it is.
Naturally odd and kind of eerie, the vast majority of our cells in our bodies are not even human, but instead microorganisms and bacteria in a symbiotic relationship with our functions and make up. The largest proportions of these cells, about one hundred trillion of them, a number about ten times greater than the total number of other human cells in the entire body, live in the digestive tract. Such microorganism cells digest our food, gleaning the energy and fatty acids needed for us to exist, and keep all the body’s systems running properly. They also metabolize acids and synthesize vitamins, working closely with the liver, digestive tract, and even muscle tissue, with their combined efforts resembling an alien organ seemingly existing within us. Much like our skin is also considered an organ. But many believe, and rightly so, that for all intents and purposes in most living things, the digestive tract is running the show.