Why ask me how long I have to workout each time?
I noticed this as well, the videos in the 15-30 minute category aren't really strong workouts on their own. I started out trying to do 30 minutes and eventually just freed up more time, usually I do a full hour now, 2 30's or a 40 and a 20. There just aren't any great short workouts here, however that being said, doing an hour has been amazingly effective, I've lost 8 pounds in a month. I doubt I could have done that with only 30 minutes.
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