"Incredibly healthy" is a stretch when it comes to power-lifting. In fact, while power-lifting helps to rapidly gain and develop muscle, it's extremely unhealthy to your joints and poses a high risk of injury. For those looking to get similar exercise and results to powerlifting, check out body-building. Emphasis on slow and controlled form and muscle gain (aesthetics).

Some good sources: http://scoobysworkshop.com/ http://www.bodybuildingrevealed.com/

disclaimer - I've used SS with great results, however this is not a program for everyone, keeping in mind we are on a science/tech forum