All of the exercise programs I have mentioned in the title, have three aspects in common: they're pointless, they are marketing off of your unhappiness/vulnerability; and they're stressing your body quickly in a shorter amount of time in order for you to achieve faster results. These "quick" miracles, with the promise you will be gorgeous in 90 days, defeats the body faster -- then you inherently give up exercising because you're body aches, and as you become lazier you find solace in unhealthy foods....Trust me, I know...
Real exercise is minimal and long, like biking, hiking, running, and yoga. Kenpo is also very fun.
Don't you feel like a ROBOT when you're exercising these work-out programs...following along to their every move...