Reduced brain glucose metabolism can be measured decades before Alzheimer's symptoms appear, leading to the term 'Type 3 diabetes'.

“this is a very important thing because when we look at the uh the cognitive decline issues that we start now start to increase things like uh you know alzheimer's and dementia a big piece of that probably most likely has to do with our our issues with how we process sugars and glycogen and our sensitivity to insulin in fact some researchers call alzheimer's and dementia type 3 diabetes”

“reduced brain glucose metabolism can be measured you know up to decades even before any Alzheimer's disease symptoms or dementia symptoms occur hence you hear the term type 3 diabetes”