Alzheimer's disease - why it happens?

Alzheimer's disease is a very bad impairment of the human brain. Alzheimer's disease is a nerves related disease and it results in loss of memory. The patients suffering from this disease tend to forget any information of their day to day life. These patients require special treatment and care. At a higher stage the patients suffering from Alzheimer's disease is just an alive body but they do not have any sense of what is going on around them. They do not have any of the senses to work so they can not do any of their daily routine work. They need an extra hand who will feed them change their dresses, make their food will escort while washing hands, face or even while taking a bath.

But it is not always necessary that loss of memory happens because of the Alzheimer's disease. In fact it is really hard to find weather a patient is suffering from Alzheimer's disease or not. This is because the mental and physical malfunctioning of a human body is very hard to determine and there are no such test which will proof that weather the patient is truly suffering from acute Alzheimer's disease or it is only traits of forgetting stuffs of daily scheduled work. Initially it is very hard to trace the Alzheimer's disease but when the patient starts forgetting big issues like a medical appointment, losing important documents forgetting something which they have heard few minutes back, it is evident that they are surely suffering from Alzheimer's disease. Once a patient gets into Alzheimer's disease he or she sinks into it thoroughly since there is no medical cure known for it.