I thought this might be of interest

Brains With Brawn...

   Brawn and brains do mix - at least in mice, which
have been shown to get smarter with exercise.
   That's according to a University of Illinois
study...which suggests repeated physical activity
triggers chemical changes in the rodent's brain that
enhance learning and memory. The scientists say mice
who had access to an exercise wheel in their cage were
better at solving puzzles than their counterparts who
had no wheel in their cage. And they say the mice who
worked out grew more brain cells than the others.
   Other studies point to similar mechanisms at work
in humans.
   The report was published in the Proceedings of the
National Academy of Sciences.

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