We all know that exercise is beneficial to your health. Recently a study was published that suggested that more than light running (less than 4 hours a week) was better than intense exercise. This received substantial publicity.
However, in a review of this study editorialists pointed out that the size of the group was actually very small, and the study was not large enough to really determine if this was actually true.
In another study, it was found that brisk walking (3-5 miles per hour) for even as little as 20 minutes a week was associated with significant improvements in health.
The bottom line is that we should all be doing some exercise several times a week. And intense exercise, while probably not more beneficial than moderate is still good!
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