The program that started it all for me! Insanity: the high intensity interval training that transformed my life, I’m in the best shape ever at 5’3″ 123 lb. I started at 144 lbs. It’s the best, quickest way to drop weight and reshape your body – I lost over 30 inches. My husband lost well over that. You get the most amazing sleep, the body has no choice but to shut down and get the rest it needs. It only takes 60 days to get hooked, I’m still doing it 12 months later.