Lutein may counter cognitive aging, study finds

(University of Illinois at Urbana-Champaign) Spinach and kale are favorites of those looking to stay physically fit, but they also could keep consumers cognitively fit, according to a new study from University of Illinois researchers.The study, which included 60 adults aged 25 to 45, found that middle-aged participants with higher levels of lutein -- a nutrient found in green leafy vegetables such as spinach and kale, as well as avocados and eggs -- had neural responses that were more on par wit...