I love the Foundation Series. It keeps me moving everyday. Deron is a fantastic instructor. I have also been doing the Core and Balance Practices in the Therapy Section. There are so many exercises for every part of the body from beginner on. The program is a blessing to me. Everyday, I have my instructions to follow right along with Deron. I am 82 years old. I used to do marathons but retired and slowed down a lot. This has got me all fired up again. Thanks and God Bless!