Over the years - and indeed on this blog - there have been quite a few stories linking different foods, habits and lifestyles to an increased or decreased risk of Alzheimer's disease. However, a panel of experts set up by the National Institutes of Health in the U.S. has reviewed all the evidence and found that we still know next to nothing about what (beyond getting older) causes it and how we can prevent it. There is a strong association with a gene called ApoE4 but it is a long way from being aware of the link to deriving any practically-useful information from it. There was no evidence of even moderate scientific quality linking dietary supplements, drugs, healthy eating, exercise and a good social life to a reduced risk of Alzheimer's and in studies that did show an association there was no evidence that it wasn't being mentally alert that allowed people to maintain a healthy lifestyle rather than vice versa. There was evidence that diabetes, depression and smoking were associated with an increased risk of Alzheimer's but nothing to suggest that they were connected.
You can find out more about this report at
and read the whole thing at