pius

"Next was comparing Merb against other ruby options. Returning directly from the Merb router kills everything, but there aren’t many scenarios you could use that. Sinatra is just slightly faster than returning from the Merb controller, which both outperform Rails by a 3-4x. Rails itself still kills CakePHP."

To be fair, Crossfit's a lot more than "strength training."

Lifting is very useful because it actually increases your basal metabolism for many, many hours after your workout (as opposed to most aerobic exercises, whose metabolism boosting effects peter out in about an hour). In the long term, that benefit only compounds due to the increased muscle mass you gain.

If keeping your body in an enhanced calorie burning state even while you're sedentary isn't an exercise hack, I don't know what is. ;)