I'm in my second of three months with Advanced Adrenal Factor (and Advanced Joint Support). In my first month I thought my energy and stamina were starting to improve. Now, in my second month I'm still hopeful. (I give a more detailed review with Advanced Joint Support.) Briefly, I'm a very active man in my late 70s and I'm looking for an answer to my loss of stamina. If Advanced Adrenal Factor doesn't begin to work more effectively, I'm not sure what next to do to improve. I'm increasing my 3-to-5 times weekly workout intensity with the P.A.C.E. protocol so my short term energy is improving, feeling energized after the 15 minute workout. I still struggle with my stamina in the two-hour second tennis set, some days I must stop midway. Until three years ago I could golf and play multiple tennis sets, and hike at altitude for 15 miles with no problem.