Thomas Reynolds wrote:
I don't really think there is a cause-and-effect relationship between
activity and intelligence. I think it is just two characteristics of
a certain type of person.

But keep riding.

Tom

There was a study in the headlines within the last month to this effect
IIRC: Physical activity keeps alzheimers at bay.

--
--
Lynn Wallace http://www.xmission.com/~lawall
"We should not march into Baghdad. ... Assigning young soldiers to
a fruitless hunt for a securely entrenched dictator and condemning
them to fight in what would be an unwinnable urban guerilla war, it
could only plunge that part of the world into ever greater
instability." George Bush Sr. in his 1998 book "A World Transformed"