Should I do Doubles in P90X?

Doubles is very demanding on the body, and it’s very important that you take in the proper pre and post workout nutrition. If you feel like your body can handle the extra workload, and you are wanting to shed a bit more body fat, give it a try. Or, you can do what I did – substitute Insanity cardio routines for the P90X cardio, which will definitely up the intensity factor!

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