P90X and CrossFit
Welcome Stumblers and all newcomers! If you want to lose weight, gain muscle, increase energy levels, reduce stress or just generally look and feel healthier you've come to the right place.
Subscribe to my free weekly newsletter for tips, advice and special insider-only information.
Learn more about the Primal Lifestyle by visiting the Primal Blueprint 101 page. Thanks for visiting!
Nearly every day I get emails from readers about P90X and CrossFit. Most are favorable, some not so much, but mostly, people just want to know if these fitness programs fit within the context of the Primal Blueprint Fitness methodology. In this article I’ll explore what’s great about P90X and CrossFit, and then I’ll voice my nit-picky criticisms and explain how I think both can be improved upon.
It’s often said that any movement is better than no movement, that simply getting up and being active is better than sitting on the couch and stewing with guilt and self-reproach. For the most part, I agree with this assessment. It’s imperative that everyone be active, even if it’s just taking nightly walks or using the treadmill at the gym. But “just any old movement” isn’t ideal. Ideally, we should be performing movements that support, enable, and enhance quality of life. Our exercises should make us stronger, faster, and more capable of accomplishing just about any physical feat the world throws at us. They should be enjoyable (pleasure-giving), brief (without sacrificing effectiveness), sustainable (lifelong), immediately accessible (to young, old, and untrained), and infinitely scalable (from beginners to elites). A fitness program, then, should meet these benchmarks.

Most people are at least cursorily familiar with the concept of the circadian rhythm. For those who aren’t, the circadian rhythm refers to our internal, approximately 24-hour cycle of biochemical, physiological, and behavioral processes. Every living thing, from fungus to bacteria to plant to animal, has a circadian rhythm. External cues called zeitgebers (what a great word, huh?) help synchronize or alter our rhythms; they include temperature, nutrition, meal timing, social interactions pharmacological interventions (medicines, drugs), and, most prominently, the light/dark cycle of the earth.
Thank you and congratulations are due to loyal Mark’s Daily Apple readers, as you smashed viewership records in February, 2010. MarksDailyApple.com had hundreds of thousands of unique visitors and millions of page views! This level of volume ranks MarksDailyApple.com as one of the top-5 health and fitness blogs in the world. I am also excited to report that the first printing of
The thing about
The following reader email brought to mind a 




