Now that I can do 30 minutes run without dying, I am slowly adding on minutes and this morning did an extra 10 minutes. So 40 minutes all told. I had decided to carry on just a bit and see, and then my mind went somewhere and before you know it, bang, an extra 10 minutes. The good part is that I could have gone even longer but I knew hubby would probably have breakfast ready. The hard part was trying to climb the ridge through the rocky goat track to reach our camping spot. I had two days rest before that so maybe it helped to run longer. Or is it because my brain got busy with other thoughts? And I wasn't there but on a different planet? Either way it is great. Ps: I am also starting to do squats. Hope this help.