Dementia is by definition the inability to function mentally. It’s not a illness or a disease but rather it is a number of symptoms which showcase as a result of various other illnesses and diseases. It largely tends to occur in elderly people. The statistics say that between 5 and 8 per cent of people over 65 years of age have it in some form or the other. Estimates are positive that 50 per cent of people above 80 years of age do suffer from dementia.

The cause of dementia is the infection of the sections of the human brain that allow for the making of decisions, memory, language and learning. One of the most common causes of it is Alzheimer’s disease. Six out of every 10 patients of dementia are patients of Alzheimer’s disease. Patients of dementia get irritated very fast, are easily confusable, very aggressive and suffer from long term memory loss. This ultimately leads to disability in the body and then finally death of the patient,

Human brains just like the body also age. We can observe these things when we get older as we think much slower and remember with far greater difficulty. This increases with the years. But if these symptoms increase faster than they should, then there is a certain abnormality in our brain which needs to be looked at.

Other causes of dementia, apart from Alzheimer’s disease, is Parkinson’s disease and Huntington’s disease. Other diseases that change blood cells (a stroke), alcohol consumption beyond the limit, lots of drug usage, deficiency in nutrients, spinal cord and brain infections (Creutzfeldt-Jakob disease and AIDS dementia complex), fluid accumulation in the brain or even a head injury.

There are certain things that we know though for sure about Alzheimer’s disease. We know for sure that it is fatal, degenerative and progressive. In America, the figure of patients come up to 5.3 million a figure that makes it the seventh largest disease in the entire nation that kills people. There is no cure yet for the disease yet that the medical world has been able to provide. It is not possible to do a prognosis individually as the disease is known to be too variant to actually monitor and study.

That is because it develops before being known to exist which means it can exist for a long enough time to study it but it is not possible to diagnose it until it shows itself. Even after diagnosis, the average survival time for a patient is seven years which has not been enough to effectively understand the problem. A few people have lived longer than that but that is a mere 3 percent of people who lived for more than 14 years after detection of Alzheimer’s disease.

Despite this failure to find a solution to the problem, the effort is on to provide better services to take care of and cure these patients of Alzheimer’s. Worldwide, the medical community is doing all they can to find these solutions. To make thing better for those who are suffering, the people who take care of people who suffer from Alzheimer’s need to be sensitive to their needs and requirements.