Dementia and brain shrinkage
AN EPIDEMIC is looming of a condition called dementia in which there is a pathological decline in mental function. Researchers estimate that the number of people suffering from it worldwide will double within the next two decades.
The word dementia literally means ‘without a mind’ and this problem occurs in several nervous system disorders. The infamous Alzheimer’s disease (AD) has become the most common cause of dementia.
Dementia impairs how one thinks and how the brain functions and limits the sufferer’s ability to perform the normal activities of daily life. Memory, particularly shortterm, personality, reason and logic suffer particularly. Because there are many other causes of dementia, a careful medial evaluation is necessary before AD can be diagnosed.
YOUR SHRINKING BRAIN
The brain is made of billions of nerve cells called neurons. In AD, these cells are rapidly destroyed and the brain shrinks.