Something to keep in mind with regards to activity levels is that virtually every skeleton found from pre-agricultural eras exhibits the muscle attachments on par with those of olympic athletes. Our ancestors WERE very active (check out Loren Cordains paper on the projected energy expenditure of HG's). Your point that our ancestors were likely excellent organizers and not simply pushing boulders about for the heck of it is most certianly true, however this does not diminish the amounts and intensities of of activities they performed. In Another aspect of the paleo life-way is the enormous amounts of rest which HG's had. essentially very hard work and LOTS of rest. Most modern periodized training for elite athletes follows patterns similar to this. Robert To unsubscribe from the list send an email to [log in to unmask] with the words SIGNOFF EVOLUTIONARY-FITNESS in the _body_ of the email. To get a copy of the old archives or the FAQ, look in the EvFit folder at http://briefcase.yahoo.com/dryeraser