Small dietary change may keep brain young
A recent study that followed 960 participants with an average age of 81 for 4.7 years found that the difference between those who ate only 0.1 portions of leafy greens per day compared to those who ate 1.3 portions per day was approximately 11 years’ worth of cognitive decline.
https://www.medicalnewstoday.com/articles/320416.php