Things definitely on the upswing for endurance, fitness, etc.....Ran a 5 milr route that's a slight downhill for the first half, but when you turn aroun it's obviously a slight uphill the whole way back....today is the first time I have done the whole thing with no break during the uphill! All this while having radiation daily, having a cold and very little sleep.......Coming back! Hope you are doing things to "keep up!