Cognitive Decline by Age
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.
At the age of 2 to 3 years old, children have 10x the synapses and 2x the energy burn of an adult brain.