I'm a 61 year old woman who definitely doesn't feel 61! I took Shift Shop on as a challenge to myself and was quit pleased with the program. I'm not a huge fan of cardio, so the speed workouts were a big challenge for me but I did them all and only modified occasionally. I am healthier at 61 than I have ever been in my life. I struggled a bit with the nutrition plan but persevered and was quite pleased with my results. Beachbody has formed me into the healthy 61 year old I am today! I think I'm going to tackle Sagi's new program next!