This one’s from Clyde Soles, a veteran mountaineer, rock climber, writer and photographer. Soles has written a couple books for climbers, including this well-regarded title devoted to the subject of knots. He’s already had one provocative post pointing to evidence that the social costs of sloth are lower than the social costs of living a long and healthy life.

There is now scientific evidence that it’s less expensive to be unhealthy. Using data from the Netherlands (2003), researchers created a mathematical model to predict lifetime health costs of lean non-smokers, obese non-smokers, and lean smokers. It turns out that the “healthy-living” group has the highest cost on society. Why? Because we live longer. And that means more expensive health interventions in the long run. On the bright side, our health costs are the lowest until around age 56.

My mom, an expert on industrial health plans and employee wellness (she built a plan for a Dow 30 company), has told me time and again that research demonstrates this notion as false (specifically: staying fit prevents expensive health interventions, while sloth causes them), but I guess that means I need to talk to my mom more — I’m sure she’s up on this study.

Be that as it may, Clyde’s blog shows great promise. His pictures are pretty, too.