Don't do the 2nd work out, Kettle Bell Inspired, until you've got a few work outs under you. I made the mistake, twice, of doing work out 2 a little too soon. I used to be in pretty good shape, but have been derailed for a while. I did work out 2 and my legs where sore for days! Which is good, because it means the routine obviously works! People say Denise isn't "Tough Enough" I don't agree, If you watch he videos she generally has 3 levels of difficulty being performed with he companions. Denise is generally the middle difficulty with a more beginner and a more advanced person exercising in the background. Maybe I have a heart condition, but I always find it hard to follow along with out stopping for a little break.A little back story: I've been exercising with Denise on and off since middle school. In my early twenties I began recording her show and doing them after work, and I saw results. I started adding in her videos, and really was only able to exercise 3 times a week. Eventually I went off on my own with jogging, and biking, and my own weight routine. Slowly the weight came back, even with my better eating habits. After being pregnant and having a baby, I really haven't been able to find anything that worked. I tried jogging, and rollerblading, elliptical followed by a complete weight routine, nothing changed. I decided about a month ago to go back to where I started, doing work outs with Denise. And I could tell right away that it was working. My posture instantly improves, my energy is slowly increasing, and I think that bloat is going away.Denise was a gymnast who earned a scholarship to ASU, and then studied sports and fitness. She is constantly researching and creating routines that are both fun, and effective, and also efficient. She knows most people are busy or easily bored, so she keeps her routines around 20 minutes. I recently read a study that supports her method of high interval bursts followed by sustained recovery. Basically the group that exercised less, but did more intense bouts loses weight over the group that exercised more/longer but never did any intense burst in the work out. Maybe this is why her videos seem to be working for me, even though I'm only exercising 20 minutes every other day, rather than 45 minutes.My main goal right now it to get my energy back, I might have an underlying condition, and I might have other issues that are keeping me from losing weight. I'm sure my diet needs refining again too!If you find these workouts are not enough you can always up the intensity and weights on your end to make it more so.