Learned something from that PBS show tonight that I didn't know before: besides increasing blood flow to the brain, exercise also seems to increase the levels of brain growth hormone in all areas of the brain. That hormone keeps your brain healthy apparently, and might even make you a bit smarter.
-- Join the ExI/>H SETI team today: http://setiathome.ssl.berkeley.edu/cgi-bin/cgi?cmd=team_show&id=393 ------------------------------------------------------------------- "It IS possible." - Vincent, _Gattaca_