From Sylvia María Valls:

Re: Poverty may reduce kids’ brain function (Dec. 6): There are too many things left loose in this article... It is obvious that the poor, especially in cities, are bound to be depressed and that depression causes lower intelligence activity. I would be interested in finding out more about the relationship between sufficient protein intake and lower intellectual activity. Hitler was not exactly stupid (or in some ways he was not dumb) and he was a vegetarian... Are the poor poor because they are depressed, or depressed because they are poor, or both... Or what came before, the chicken or the egg?