Walking boosts brainpower

"Older adults who take a brisk stroll just three times a week could boost their brainpower and reduce the risk of memory-robbing illnesses such as Alzheimer's disease. Research published in this week's issue of The Journal of the American Medical Association is believed to be the first to show that home-based exercise improves cognitive function in adults with mild cognitive impairment, a stage between normal aging and dementia. MCI is marked by mild forgetfulness, language difficulties, and other cognitive problems that are noticeable but do not interfere with everyday tasks - WebMD"