Mental Disorders

[subodhkumar]

It is now admitted that the nutritive diet of pregnant mothers and infants, not only affects among other things, the physical size and formation of brain, but is also responsible for the development of specific mental traits.
There are societies like those which got colonised inspite of their historically documented 'glorious' past, like south Americans, south Asians
for example.
The main stream in such societies appear to have very little spirit of adventure, achievent orientation, and are easily resigning to their'fate'.
Is it possible that lack of knowldge about what nutritive foods were necessary and naturally easily available in their environments, could have brought about the loss of vigour in these societies and consequent easy defeat of these'peace' loving passive societies at the hand of more vigorous adventurous invaders?
Subodhkumar