Four studies presented at the Alzheimer's Association International Conference this week point to the benefits of exercise in maintaining memory function. One exciting study prescribed a moderately intense walking program and compared it with a stretching-toning exercise program. The subjects were older, sedentary adults who had no signs of dementia. The walking group had a 2% growth in the hippocampus -- a brain structure associated with memory, and an increase in brain-derived neurotrophic factor (BDNF). "Our findings suggest that the aging brain remains modifiable, and that sedentary older adults can benefit from starting a moderate walking regimen," said researcher Kirk Erickson, PhD. The stretching-toning group did not see similar benefits.
...Source: http://walking.about.com/b/2012/07/18/walking-program-grows-brain-memory-center.htm
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