Yian Gu, postdoctoral researcher in neurology at Columbia University Medical Center, who studies the relationship between diet and Alzheimer's, said the study looks promising if the claims of memory improvement hold up, but noted that further research should be done to confirm those results.
But the sheer magnitude of the human tragedy of the second world war puts it in a class of its own, and its relative closeness to the present day makes claims on the collective memory that more remote horrors cannot.