Re: Re: Is Marathoning Too Much of a Good Thing for Your Heart?

[Guest guest]

> As for evidence of exercise specifically, there is

> the Harvard Alumni

> Health Study, a study of 11,130 males who graduated

> from Harvard

> University between 1916 and 1950 This study did

> find a strong

> correlation of exercise and longevity.

Up to a point where the more exercise was not

beneficial but harmful. I beleive it was around over

2500-3000 calories expended a week, which is about

350-425 calories a day. Which is about 1 hour for

most people. Which is also the same amount the

National Weight Control Registry found in those who

successfully maintained long term weight loss. And I

would agree, that it is also probably an amount that

humans got " naturally " before we had our modern

lifestyle.

Regards

Jeff