The Multiple Sclerosis (MS) is a disease of the central nervous system in which we can see two main parts: the brain and the spinal cord. Surrounding and protecting nervous fibers of the central nervous system there is a material made up of proteins and fats called myelin that facilitates the conduction of the electrical impulses between nervous fibers. In Multiple Sclerosis the myelin is lost in multiple areas leaving, sometimes, scars (sclerosis). These injured areas are also known with the name of demyelination plates.
The myelin not only protects the nervous fibers but also facilitates its function. If the myelin is destroyed or injured, the ability of the nerves to lead electrical impulses from and to the brain is interrupted and this fact produces the appearance of symptoms. Luckyly, the injury of the myelin is reversible in many occasions.
It depends on the injured areas of the central nervous system and all the people are not affected in the same way. The symptoms not only vary between different people but also in a same person and according to the moment. Also they can vary in gravity and duration. A person with MS experiments normally more of a symptom but all the people are not going to experience all the existing symptoms.
The symptoms include weakness, creeps, little coordination, tires, visual problems, balance problems, alterations, tremor, muscular rigidity, intestinal or urinary upheavals, problems of the speech, problems to walk, instability, problems in the sexual function, sensitivity to the heat, memory problems in the short term and occasionally problems of judgment or reasoning. It is necessary to highlight that most of the people with MS do not have all these symptoms.