Fascinating! In a study involving 27 year olds, brain function increased more than 50% from the baseline following the introduction of a consistent exercise program. Then, as soon as the exercise was stopped, the brain function began dropping again immediately. The reference for the study is below, but before looking it up, maybe it’s a good time to get up and take a walk? ;- ) Here’s the source: Harada, T. et al (2004) Jogging improved performance of a behavioral branching task: implications for prefrontal activation. Neuroscience Research 49: 325 – 337