I've skimmed over a few the articles in this series and I'm confused as to how it keeps making appearances on the front page of HN.

There is nothing specific here that applies to start-up founders/employees/entrepreneurs (despite the intended purpose), the articles are poorly written and far from complete, most of the advice is common knowledge, and the rest of the advice is of dubious value.

For anyone looking to get in shape, I highly recommend reading the stickies in the John Stone Fitness forums: http://forums.johnstonefitness.com/