I am currently using ATHLEAN-X for men. I am a 53 year old male and found Jeff on the internet while I was trying to recover from an injury I got doing the P90X. I have worked out with a few popular programs P90X, Insanity, and Darin Steens Fat loss life style. ATHLEAN-X blows them away. Not only did Jeff get me pain free but he made me the most functionally fit I have been my whole life. I am doing the NXT right now and looking forward to the Jeff’s summer prep.