The world population is getting older now. People over 65 years who are at present 12.9% of population , is expected to grow to be 19% by 2030.
An inescapable fate of growing old is the gradual slowing of cognitive and mental capacities. But AD ( Alzheimer's disease ) is not normal ageing. It is a type of dementia which develop due to certain changes in brain.
The most common symptom of AD is difficulty remembering things. In normal ageing people do forget things but typically remember it later on. But in AD that does not happen. If one forgets ,he forgets it, and even if reminded about it,he seems not familiar with it.
Forgetting to pay monthly bills is normal for aged, but forgetting how to pay and where to pay is a symptom of AD.
Going to a friend or relatives house for many years and now not sure how to get there or come back from there is AD.
AD has trouble in managing conversation,stopping midway and repeating same thing again and again. Misplacing things and later on failing to recognise it.
Trouble with visual perception ,if no cataract, and trouble in determining the height of a stair or balance on an uneven ground.
If we are able to recognise these symtoms in any person and immediately take him/her to a competent doctor, it might be of great help to the sufferer.