How far has research into lifestyle habits and its effect on Alzheimer’s progressed?

Research has changed in recent years. There was a resistance by the field of neurology that nutrition and diet had little to do with the brain. Part of that problem is that the physicians don’t get much nutritional training but also the field of nutrition has never, for some reason, tapped into the field of neurologic conditions so it’s only been in the very recent years that there’s been a change in both the nutrition and neurologic community.