Often in a conversation we use such an unpleasant phrase as “senile dementia” and mean in this case Alzheimer’s disease. This is a disease in which certain systems of brain cells (neurons) die. One can notice the first symptoms after the age of 40, and after the age of 70 the disease frequency reaches 30%. Alzheimer’s disease is the most common cause of dementia that develops in elderly and senile age. More often the age dementia affects women.
How does this happen? Alzheimer’s disease begins in the brain when the protein deposition occurs in the form of “senile plaques” and neurofibrillary tangles are formed, which consist of damaged neurons. These processes lead to the destruction of brain nerve pathways.
Specific reasons for such changes in the organism are not yet fully known to science. However, in recent years, scientists were able to identify specific genes responsible for predisposition to Alzheimer’s disease. The early stage of the disease can manifest itself with some memory disorders. Such symptoms can be easily hidden, and so the disease remains unnoticed to the others.
In the course of the disease there is an increase of loss of memory. The person feels lost, the sense of confusion and bewilderment pursue him. Gradually, the patient ceases to be oriented in time and place. His state worsens, and the person loses the accumulated knowledge, experience and skills. At first, the person forgets the nearest events, and then the older ones. He ceases to recognize shapes, colors, faces, loses the sense of orientation in space. It can be noticed in the disorder and asymmetry of his handwriting, in addition, his speech is becoming increasingly unclear and inarticulate.
This high school research paper considers the Alzheimer’s disease more detailed, indicates the factors that will help to establish the diagnosis, forms of treatment and prevention of the disease.