Ageing is a process we need to accept.
Research suggest healthy brain aging can be maintained by consuming omega 3 and omega 6 fatty acids.
Our brains organs composed of many parts and we all age at different rates. In saying some brain structures and functions will deteriorate earlier than others.
The research concluded people who had higher blood levels of omega 3 fatty acids , had a larger frontoparietal cortex and performed better on the fluid intelligence tests conducted.
Another study examined the white matter structure in the brain’s fornix with this being vital for memory and llocated towards the middle of the brain.
This was found to be linked to balanced blood levels consisting of omega 3 and omega 6 fatty acids.
The older range of adults tested who had better memory tended to have a bigger fornix.
https://www.naturalnews.com/2019-02-13-omega-3-intake-found-to-substantially-slow-brain-aging.html