Today I did not go out to run, because they were poisoning mosquitoes with airplanes, so air was full of that stuff, and I did not want to go out and to breathe that. So instead I was running upstairs and downstairs in the building in which I live. But I must admit it was not easy for me, I was losing my breath, so I took it very easy, and slowly - did not push anuthing beyond my limits. One should be very careful when running upstairs, and it must be done slowly and steadily.