A few nice memory aging images I found:
Sweet Memories Aged Maple Black Jelly Bean

Image by Mirage floors
Living Room with a Maple hardwood floor in Black Jelly Bean stain. Sweet Memories Series.
For more information, visit www.miragefloors.com
Cognitive Decline by Age

Image by jurvetson
This UCSF Memory and Aging Center graph shows that our cognitive abilities remain relatively constant until they reach a breakpoint, and then decline at a constant rate. The pace of cognitive decline is the same in our 40’s as in our 80’s. We just notice more accumulated decline as we get older, especially when we cross the threshold of forgetting most of what we try to remember.
(Posit Science used to host this graph, and I needed an online version for my blog on Celebrating the Child-Like Mind, and Childish Scientists.)
At the age of 2 to 3 years old, children have 10x the synapses and 2x the energy burn of an adult brain.
Kept here

Image by Autumnsonata