This is an appealing result. I like exercise and I want to think it's doing good things for my brain, but as with all studies on the mind-body link, it's going

This is an appealing result. I like exercise and I want to think it's doing good things for my brain, but as with all studies on the mind-body link, it's going to take a great deal more evidence to make it convincing. It's especially premature to conclude anything about exercising the legs in particular.