From a report in The Journal of Nutrition:
English walnuts are rich in numerous phytochemicals, including high amounts of polyunsaturated fatty acids, and offer potential benefits to brain health. Polyphenolic compounds found in walnuts not only reduce the oxidant and inflammatory load on brain cells but also improve interneuronal signaling, increase neurogenesis, and enhance sequestration of insoluble toxic protein aggregates. (Emphasis mine. Neurogenesis is growing new brain cells, which we at Big Brain Place are all about.)
That research was performed by a team at Tufts University including Shibu Poulase, PhD, Marshall G. Miller, Post Doc, and Barbara Shukitt-Hale, PhD, and sponsored in part by the USDA. Link here. The research contains an imposing list of nutrients that walnuts include, most of which I’ve never heard of. That doesn't mean they aren't really good for us.
Scientists have developed a breed of “transgenic mice” that makes them susceptible to the mouse equivalent of Alzheimer’s Disease (AD). Researchers at the New York State Institute for Basic Research in Developmental Disabilities used those transgenic mice to learn if adding walnuts to their diet might give them some resistance to AD, and it did. From the research reported in the Journal of Alzheimer’s Disease:
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