Bob LeFridge 
Good news. Brain regeneration is real, for some of us at least.
Leading a brain-friendly lifestyle which includes diet, exercise, stress reduction, optimising sleep and managing vascular risk with meds "...can also grow brain areas like the hippocampus, and reduce signs of Alzheimer's such as tau tangles and amyloid plaques.”
When I grow up, I want to be a SuperAger.
https://www.rnz.co.nz/life/wellbeing/scientists-discover-a-key-to-staying-mentally-sharp-in-old-age
