Many non-life-long runners die from cancer too. The paper suggests you need to be at 80-85% max effort to get maximum benefit, the runners I know tend to conce

Many non-life-long runners die from cancer too. The paper suggests you need to be at 80-85% max effort to get maximum benefit, the runners I know tend to concentrate on distance and the social aspect (so are running at an effort where they can sustain a conversation), rather than getting to the end of the run as quickly as possible.