Curtis,

>>I don't think this a scientically proven fact. Our diet has changed dramatically in the last 125 years.
>Not just diet but our entire lifestyle. We get much less exercise.

< getting a dictionary to look up the word 'exercise' > *grin*

> Many of us don't exercise as a part of our daily routines any more. 50 years ago we walked more, moved around more. I can sit in my living room all night long and only get up to answer the door when the pizza guy gets there.
>

yep...

>>>But then, I don't think humanity has seen a cow die of natural causes (heart attack, stroke, etc.) in at least 2000 years.
>Maybe because we're busy killing them before they have the chance. When was the last time you heard of a cow dying of natural causes?

That was Alex's point :)