I finally decided to get fit coming back from Germany in spring 2008. Hitting the scales at 218 lb and ready to bust through my size 38 w pants. I spent a year at Lifetime Fitness and using the South Beach diet with great results. I went down from 215 lb to 190 lbs. But I’ve been there before and usually yo-yo back up. But this time something different happened. My brother in-law introduced me to P90x and with it, I’m now down to 168 in size 32 w pants! So what is P90x? Well, this video best explains it.