by the way ... interesting fact.

scientists did a study over the last couple of years to find the "people group" in the world with the best overall health and cardiovascular health. The winner was a tribe living in eastern Bolivia, and they 'won' the competition by a significant margin. Their cardiovascular systems are way ahead of everyone else, even to a ripe old age.

So what are they doing right?
The answer was ... lots and lots of walking. every day.
The tribe has a daily average that is three times the distance walked by people in western countries. they do this largely through necessity - its how they gather food. but it has become an in-grained habit for them to walk big distances every day.