Increase the Size of Your Hippocampus to Improve Your Memory

Study by Kirk Erickson Ph.D. published in Proceedings of the National Academy of Sciences:
Seniors were able to improve their memory by increasing the size of their hippocampus, the part of the brain where memory and emotion are stored and controled, by walking 40 minutes-three times a week for a year.  
Participants who walked showed an average 2% increase while those who did stretching exercises showed a
1.4% declinle in their hippocampus volume. Dr. Erickson, the lead author in the study, suspects increase blood flow and growth in the cell connections may be the contributing factors. Lets get out and walk!