Confused about the link with poverty and stress. A linked article states: "Several teams presented evidence that poverty, disadvantage and stressful life events are strongly associated with cognitive problems in middle age and dementia later in life among African-Americans.<p>The findings could help explain why African-Americans are twice as likely as white Americans to develop dementia. And the research suggests genetic factors are not a major contributor."<p>Since there are more poor whites than African Americans, I don't understand why being poor explains African Americans being twice as likely to develop dementia?
That was a bit unsatisfying, it seems no real answers, but I suppose that's to be expected considering the research is only in it's very preliminary stages. Considering the costs involved - getting volunteers and spinal fluids, it seems like we're not going to get meaningful answers in the near future.