Geneva: The new guidelines to prevent dementia focus on keeping the whole body healthy as a way to prevent mental decline.
Fifty million people worldwide have dementia and Alzheimer's is the most common type. Dementia is currently incurable, but studies show a variety of things that can influence the chances of developing it.
The guidelines published by the World Health Organization on Tuesday recommend doing enough exercise, eating well, avoiding or quitting smoking and treating other health conditions such as diabetes, hypertension and high cholesterol.
They take a firm stand against vitamin pills, fish oil and other supplements, saying that there is clear evidence that they do not prevent mental decline.