I love that I found this program on Face Book!! It's for us seniors that that exercise or not exercise very much. I started at the beginning with the Foundation Series. Started at #1 and have now gone on to Cardio/kickboxing. The beauty of this program is you work at your own pace. You can do one or two or three...whatever your body will handle well. I have done Cardio #5 and #6 several times. It's been over 2 years, 3 years by November 2022. I have much better balance, I have strength, actual muscles, that I didn't have before. I love how encouraging Deron is as he takes us through each session. I'm sure whatever stage of exercise you are in, there is one of Deron's programs that will fit you. You can ask him and send him a message at any time and he or someone will assuredly get back to you really fast. I highly recommend this program if your 50, 60 or in your 70's like me, or even 80 or 90 like a few are this site. It's not too costly and you can try it before buying or buy it for 3 months to give it a good try. That's what I did for a couple of months before I signed on for a year. Good and best of health to you !!!