Here is an interesting World Health Map (standardised) for rates of Alzheimer's/Dementia:

http://www.worldlifeexpectancy.com/c...ia/by-country/

There is a feature for selecting many causes of death Worldwide.

I note one very interesting area in particular. The English are a Germanic Race genetically, in the main, yet look at the incidence difference between us and the Germans/Eastern Europeans.

Another area, Eastern Mediterranean figures are lower than Western - Spain/Italy are high. Asian and Afro-Caribbean levels are low. Is this genetics, lifestyle or a combination - we need figures broken down by Ethnic background, as we have with heart disease and other issues. Only then will the picture become clearer.

Dave.