WHAT IS DISEASE?
I have looked online at the different definitions of "Disease"
Oxford English Dictionary state: A disorder of structure in a human, animal, or plant, especially one that produces specific symptoms or that affects a specific location and is not simply a direct result of physical injury.
Dictionary.com state: A disordered or incorrectly functioning organ, part, structure, or system of the body resulting from the effect of genetic or developmental errors, infection, poisons, nutritional deficiency or imbalance, toxicity, or unfavourable environmental factors such as, illness, sickness, or ailment.
The Farlex Dictionary, gives a far more detailed answer. A disease is a abnormal condition, a disorder of a structure or function. The study of disease is called Pathology, which is the science of the causes and effects of diseases, especially the branch of medicine that deals with the laboratory examination of samples of body tissue for diagnostic or forensic purposes
What is an Autoimmune disease?
Disease is often interpreted as a medical condition associated with specific symptoms and signs.
It may be caused by external factors such as Pathogens which can be bacteria, a virus, or other microorganism that cause disease.
Or it may be caused by internal dysfunctions particularly of the immune system where there may be immune deficiency, or hypersensitivity to particular substances, allergies or conditions and autoimmunity. The latter is an immune response of an organism (You are an organism) against its own healthy cells and tissues.
Any disease that is caused by the immune system attacking its own healthy cells and organs is termed an "autoimmune disease”.
In humans, disease is often used more broadly to refer to any condition that causes pain, dysfunction, distress, social problems.
In a broader sense, it sometimes includes injuries, disabilities, disorders, syndromes, infections, isolated symptoms, deviant behaviours.
Diseases can affect people not only physically, but also emotionally, as contracting and living with a disease can alter the affected person's perspective and quality of life.
There are four main types of disease: infectious diseases, deficiency diseases, genetic diseases (both hereditary and non-hereditary), and physiological diseases. Diseases can also be classified as communicable and non-communicable. The deadliest diseases in humans include cardiovascular disease and cancers. Cardiovascular disease include hypertension, coronary artery disease (blood flow obstruction), followed by cerebrovascular disease which affects blood vessels especially arteries that supply blood to the brain, which in turn can cause a stroke, and lower respiratory infections.
One thing I know for sure is that, disease will affect blood pressure.
How does a disease begin?
This is a subject Medical Students spend years studying, for this section I’m using a few words to describe a complex subject.
A disease in the human body starts with an infection caused by viruses’ microbes and bacteria which enter your body in different ways, disease begins when these microbes start to multiply, it’s when the cells in your body are damaged by infections, that cause symptoms and signs of an illness that a disease has affected their bodies.
Some infections or diseases will have an almost immediate effect on the human body, other take time, this is when there are no immediate symptoms and it may take weeks, months or even years before a disease is detected and symptoms start to appear.
Here's an example...
Although there are many causes of disease, there are two that spring to mind, alcohol and tobacco. If you start to have a drink every day or smoke every day, after seven days it’s unlikely people will have any symptoms, maybe a month will go by with no symptoms, maybe even longer. There’s an analogy that springs to mind. Picture a sheet of bright shiny steel. For a week, using water you wash the surface of your shiny steel plate, the water runs off and the steel plate looks good.
No Infection
However, if you continue to pour water on your shiny steel plate, although the surface still looks shiny after a short period of time the shiny steel plate will start to fade and, after time spots start to appear, and as more time passes the whole surface becomes pitted, covered in scabs and rust. People who smoke may have no immediate symptoms. However over months and years ahead, the bright clean walls of the lungs start to dull, eventually start to become clogged with tar and cease to work properly. In a similar way, people who drink alcohol have a bright clear liver, as you will guess, months and years of pouring alcohol into your liver causes silent scaring that may take time to produce any symptoms, this is due to the liver having a lot of spare capacity, however when the capacity is used up the problems start.
Now Infected
