http://www.mercola.com/2002/nov/9/fish_brain.htm
Education levels were also noted as it has been suggested that individuals with higher-level education are at a decreased risk of dementia due to a greater "brain reserve."
hmmm, "Brain Reserve"
DPIt was found that those who ate fish at least once a week were 34 percent less likely to develop dementia over seven years than those who did not.