[comrade1234]

A lot of this sounds very different than other studies that have said small amounts of exercise have substantial benefits.

I was always a little suspicious when they would say that you only need moderate exercise like walking because when you do vigorous exercise your blood vessels expand up to 3x diameter, keeping your arteries supple and elastic. You just don't get that by walking.

[jimbokun]

This study also shows a noticeable benefit from lower exercise levels, just not nearly as much as very high exercise levels.

[crazyfingers]

And many studies that show more exercise volume at high intensity is associated with higher MACE risk.