Exercise reverses brain volume loss in the elderly

Activity helps protect the brain from the strains of aging. Several different forms of mental exertion seem to provide a bit of reserve that helps hold off the forgetfulness that frequently appears in the elderly, and may limit the impact of age-related dementia. But a study released by PNAS today suggests that it's not just mental activity; physical exercise helps protect the brains of the elderly as well, and can even reverse some of the indications of aging. The study involved a cohort of 120 older adults who were randomized into two groups: one that went on a program of three moderate-intensity aerobic workouts a week, and a second that spent an equal time doing stretching and toning exercises. Obviously, this sort of thing is difficult to do a double-blind…
Read More