subject: P90X VS. Insanity - Insanity Review [print this page] Thousands if not millions of people have been using P90X for the past few years in order to lose weight and get in fantastic shape. But while this program is great for getting in fantastic shape and losing a lot of weight, it has a downside: it is 90 days in which a person really has to commit to following the program to a T in order to achieve the great results they've seen on TV.
For those people who are not willing, ready or that simply can't afford to commit to a 90 day workout program, then Insanity is a fantastic alternative.