A general decline in mental ability is caused by the progressive loss of function of brain cells. This occurs if arteries supplying blood to the brain become blocked, or as a result of a number of conditions, including Alzheimer’s disease and stroke . One of the first symptoms is a deterioration in short-term memory so that it becomes increasingly difficult to follow conversations or to read. As the condition progresses, there is a gradual loss of interest in previously enjoyed pursuits, as well as mood swings. There may be a loss of social or sexual inhibitions. Diagnosis needs care, since a deteriorating mental state may be due to a variety of medical conditions, dietary deficiencies, the use of alcohol or drugs, or depression.


The diet should be balanced between proteins and carbohydrates, and include plenty of fresh fruits and vegetables.


If symptoms persist beyond a month, see a doctor. 

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