Insightful and hopeful study on this-brain-exercise-puts-off-dementia. Dr. Jerri Edwards has investigated the ability of a new computer based training exercise on improving our brains ability to process information. See the complete article in the WSJ link below.
http://www.wsj.com/articles/this-brain-exercise-puts-off-dementia-1469469493
If you are older than fifty might be worthwhile to investigate this positive cognitive training program.
Growth Mindset Experts 