Walnuts May Help Fight Cognitive Decline in Elderly Most kinds of nuts are good for your brain and body, but new research published in the American Journal of Clinical Nutrition has singled out walnuts for their ability to help slow cognitive decline in at-risk elderly. The study, which came from team in California and Spain, found that walnuts appear to be particular effective in elderly adults who had smoked more or had a lower baseline on neuropsychological tests. You can read more about the research here: https://www.sciencedaily.com/releases/2020/01/200128080917.htm