
A Year of Cardio May Make Your Brain Look Younger
A 12-month randomized trial found that healthy adults who followed a structured aerobic program (about 150 minutes per week) had brains that appeared roughly 0.6 years younger on MRI than those who did not, with the difference approaching a full year. The change was modest and not explained by a single measured factor, suggesting multiple potential mechanisms. While larger studies are needed to link brain-age reductions to dementia risk, the findings support following current exercise guidelines to help keep the brain biologically younger into midlife.







