The New York Times (3/1, Reynolds, Subscription Publication) reports that, according to a study published in PLoS One, “for some people with early-stage Alzheimer’s disease, frequent, brisk walks may help to bolster physical abilities and slow memory loss.” Researchers at the University of Kansas recruited about 70 men and women with Alzheimer’s and while one group “began a supervised walking program,” the second control group began stretching and toning classes “that would not increase aerobic endurance.” The Times says “the toning had not slowed the progression of their disease” but “some of the walkers were thinking and remembering much better.” Researchers found that “walkers who had increased their aerobic fitness had also improved their ability to remember and think and bulked up the volume of their brains.”