Exercise good for the brain

Exercise fanatics may be right - getting out and moving increases blood flow in the brain, United States researchers said yesterday.

Tests on monkeys show that exercise helps foster blood vessel development in the brain, making the animals more alert than non-exercisers.

"What we found was a higher brain capillary volume in those monkeys who exercised than in those monkeys who did not," Judy Cameron of the divisions of Reproductive Sciences and Neuroscience at Oregon Health & Science University said.